Vulnerability-Lookup

JVNDB-2025-000058

Vulnerability from jvndb - Published: 2025-08-08 06:29 - Updated:2025-08-08 06:29

Severity

3.4 (Low) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N

Summary

WordPress plugin "Advanced Custom Fields" vulnerable to HTML injection

Details

Advanced Custom Fields provided by WPEngine, Inc. contains the following vulnerability.

HTML injection (WE-94) - CVE-2025-54940

Shogo Kumamaru of LAC Co., Ltd. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN21048820/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-54940
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

WP Engine

Advanced Custom Fields

Show details on JVN DB website

JSON

To clipboard

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  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000058.html",
  "dc:date": "2025-08-08T15:29+09:00",
  "dcterms:issued": "2025-08-08T15:29+09:00",
  "dcterms:modified": "2025-08-08T15:29+09:00",
  "description": "Advanced Custom Fields provided by WPEngine, Inc. contains the following vulnerability.\r\n\u003cul\u003e\u003cli\u003eHTML injection (WE-94) - CVE-2025-54940\u003c/li\u003e\u003c/ul\u003e\r\nShogo Kumamaru of LAC Co., Ltd. reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000058.html",
  "sec:cpe": {
    "#text": "cpe:/a:advancedcustomfields:advanced_custom_fields",
    "@product": "Advanced Custom Fields",
    "@vendor": "WP Engine",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "3.4",
    "@severity": "Low",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2025-000058",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN21048820/index.html",
      "@id": "JVN#21048820",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-54940",
      "@id": "CVE-2025-54940",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "WordPress plugin \"Advanced Custom Fields\" vulnerable to HTML injection"
}

CVE-2025-54940 (GCVE-0-2025-54940)

Vulnerability from cvelistv5 – Published: 2025-08-08 04:34 – Updated: 2025-08-08 16:11

Summary

An HTML injection vulnerability exists in WordPress plugin "Advanced Custom Fields" prior to 6.4.3. If this vulnerability is exploited, crafted HTML code may be rendered and page display may be tampered.

Severity

3.4 (Low)


                        
                          CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N

4.6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-08 16:11 UTC

CWE

CWE-94 - Code injection

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://www.advancedcustomfields.com/blog/acf-6-4…
https://jvn.jp/en/jp/JVN21048820/

Impacted products

1 product

Vendor	Product	Version
WPEngine, Inc.	Advanced Custom Fields	Affected: prior to 6.4.3

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2025-54940",
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                "role": "CISA Coordinator",
                "timestamp": "2025-08-08T16:11:01.929075Z",
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            "baseSeverity": "LOW",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.