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10 vulnerabilities found for LiteSpeed Cache by litespeedtech
CVE-2026-3375 (GCVE-0-2026-3375)
Vulnerability from nvd – Published: 2026-05-27 07:45 – Updated: 2026-05-27 10:28
VLAI
Title
LiteSpeed Cache <= 7.7 - Unauthenticated Stored Cross-Site Scripting via QUIC.cloud CCSS/UCSS REST API Endpoints
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the /wp-json/litespeed/v1/notify_ccss and /wp-json/litespeed/v1/notify_ucss REST API endpoints in all versions up to, and including, 7.7. These endpoints accept CSS content from QUIC.cloud callback notifications and store it to disk without sanitization. The stored content is later rendered inline frontend page loads without output escaping. The access control protecting these endpoints is IP-based validation that can potentially be bypassed when the WordPress site is deployed behind a reverse proxy, load balancer, or CDN with certain configurations. This makes it possible for unauthenticated attackers, under certain conditions, to inject arbitrary JavaScript into CCSS/UCSS content.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 7.7
(semver)
|
Credits
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"url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/rest.cls.php#L108"
},
{
"url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/cloud.cls.php#L2085"
},
{
"url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/css.cls.php#L401"
},
{
"url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/css.cls.php#L595"
},
{
"url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/optimize.cls.php#L477"
},
{
"url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/router.cls.php#L732"
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CVE-2025-12450 (GCVE-0-2025-12450)
Vulnerability from nvd – Published: 2025-10-29 09:27 – Updated: 2026-04-08 17:10
VLAI
Title
LiteSpeed Cache <= 7.5.0.1 - Reflected Cross-Site Scripting
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URLs in all versions up to, and including, 7.5.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 7.5.0.1
(semver)
|
Credits
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CVE-2024-9169 (GCVE-0-2024-9169)
Vulnerability from nvd – Published: 2024-09-25 08:31 – Updated: 2026-04-08 16:33
VLAI
Title
litespeed cache <= 6.4.1 - Authenticated (Administrator+) Stored Cross-Site Scripting
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin debug settings in all versions up to, and including, 6.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 6.4.1
(semver)
|
Credits
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CVE-2024-3246 (GCVE-0-2024-3246)
Vulnerability from nvd – Published: 2024-07-24 03:17 – Updated: 2026-04-08 17:03
VLAI
Title
LiteSpeed Cache <= 6.2.0.1 - Cross-Site Request Forgery to Stored Cross-Site Scripting
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.2.0.1. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to update the token setting and inject malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 6.2.0.1
(semver)
|
|
| litespeedtech | litespeed_cache |
Affected:
0 , ≤ 6.2.0.1
(semver)
cpe:2.3:a:litespeedtech:litespeed_cache:-:*:*:*:*:wordpress:*:* |
Credits
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CVE-2023-4372 (GCVE-0-2023-4372)
Vulnerability from nvd – Published: 2024-01-11 08:32 – Updated: 2026-04-08 16:42
VLAI
Title
LiteSpeed Cache <= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'esi' shortcode in versions up to, and including, 5.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 5.6
(semver)
|
Credits
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"references": [
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"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/27026f0f-c85e-4409-9973-4b9cb8a90da5?source=cve"
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CVE-2026-3375 (GCVE-0-2026-3375)
Vulnerability from cvelistv5 – Published: 2026-05-27 07:45 – Updated: 2026-05-27 10:28
VLAI
Title
LiteSpeed Cache <= 7.7 - Unauthenticated Stored Cross-Site Scripting via QUIC.cloud CCSS/UCSS REST API Endpoints
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the /wp-json/litespeed/v1/notify_ccss and /wp-json/litespeed/v1/notify_ucss REST API endpoints in all versions up to, and including, 7.7. These endpoints accept CSS content from QUIC.cloud callback notifications and store it to disk without sanitization. The stored content is later rendered inline frontend page loads without output escaping. The access control protecting these endpoints is IP-based validation that can potentially be bypassed when the WordPress site is deployed behind a reverse proxy, load balancer, or CDN with certain configurations. This makes it possible for unauthenticated attackers, under certain conditions, to inject arbitrary JavaScript into CCSS/UCSS content.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 7.7
(semver)
|
Credits
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CVE-2025-12450 (GCVE-0-2025-12450)
Vulnerability from cvelistv5 – Published: 2025-10-29 09:27 – Updated: 2026-04-08 17:10
VLAI
Title
LiteSpeed Cache <= 7.5.0.1 - Reflected Cross-Site Scripting
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URLs in all versions up to, and including, 7.5.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 7.5.0.1
(semver)
|
Credits
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CVE-2024-9169 (GCVE-0-2024-9169)
Vulnerability from cvelistv5 – Published: 2024-09-25 08:31 – Updated: 2026-04-08 16:33
VLAI
Title
litespeed cache <= 6.4.1 - Authenticated (Administrator+) Stored Cross-Site Scripting
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin debug settings in all versions up to, and including, 6.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 6.4.1
(semver)
|
Credits
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CVE-2024-3246 (GCVE-0-2024-3246)
Vulnerability from cvelistv5 – Published: 2024-07-24 03:17 – Updated: 2026-04-08 17:03
VLAI
Title
LiteSpeed Cache <= 6.2.0.1 - Cross-Site Request Forgery to Stored Cross-Site Scripting
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.2.0.1. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to update the token setting and inject malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 6.2.0.1
(semver)
|
|
| litespeedtech | litespeed_cache |
Affected:
0 , ≤ 6.2.0.1
(semver)
cpe:2.3:a:litespeedtech:litespeed_cache:-:*:*:*:*:wordpress:*:* |
Credits
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CVE-2023-4372 (GCVE-0-2023-4372)
Vulnerability from cvelistv5 – Published: 2024-01-11 08:32 – Updated: 2026-04-08 16:42
VLAI
Title
LiteSpeed Cache <= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Summary
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'esi' shortcode in versions up to, and including, 5.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| litespeedtech | LiteSpeed Cache |
Affected:
0 , ≤ 5.6
(semver)
|
Credits
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"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T07:24:04.667Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"references": [
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"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/27026f0f-c85e-4409-9973-4b9cb8a90da5?source=cve"
},
{
"tags": [
"x_transferred"
],
"url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/5.5.1/src/esi.cls.php#L480"
},
{
"tags": [
"x_transferred"
],
"url": "https://github.com/litespeedtech/lscache_wp/commit/95a407d9f192b37ac6cf96d2aa50f240e3e6b2d7#diff-7b2c514b58d1b8a71655607bdfab87cedb013bc1b8927ce0b49a89ddf4a7e01cR495"
},
{
"tags": [
"x_transferred"
],
"url": "https://plugins.trac.wordpress.org/changeset/2977143/litespeed-cache#file348"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-4372",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-01-11T17:40:18.225878Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-06-17T21:09:11.924Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "LiteSpeed Cache",
"vendor": "litespeedtech",
"versions": [
{
"lessThanOrEqual": "5.6",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Istv\u00e1n M\u00e1rton"
}
],
"descriptions": [
{
"lang": "en",
"value": "The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027esi\u0027 shortcode in versions up to, and including, 5.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T16:42:51.050Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/27026f0f-c85e-4409-9973-4b9cb8a90da5?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/5.5.1/src/esi.cls.php#L480"
},
{
"url": "https://github.com/litespeedtech/lscache_wp/commit/95a407d9f192b37ac6cf96d2aa50f240e3e6b2d7#diff-7b2c514b58d1b8a71655607bdfab87cedb013bc1b8927ce0b49a89ddf4a7e01cR495"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/2977143/litespeed-cache#file348"
}
],
"timeline": [
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"lang": "en",
"time": "2023-08-14T00:00:00.000Z",
"value": "Discovered"
},
{
"lang": "en",
"time": "2023-08-14T00:00:00.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2023-10-23T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "LiteSpeed Cache \u003c= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode"
}
},
"cveMetadata": {
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"assignerShortName": "Wordfence",
"cveId": "CVE-2023-4372",
"datePublished": "2024-01-11T08:32:29.982Z",
"dateReserved": "2023-08-15T12:43:57.111Z",
"dateUpdated": "2026-04-08T16:42:51.050Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2"
}