Vulnerability-Lookup

CVE-2026-5090 (GCVE-0-2026-5090)

Vulnerability from cvelistv5 – Published: 2026-05-19 21:30 – Updated: 2026-05-22 06:39

Title

Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected

Summary

Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected. The html_filter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected. For example, the variable "var" in <a id='ref' title='[% var | html %]'> would not be properly escaped. An attacker could insert some limited HTML and JavaScript, for example, var = " ' onclick='while (true) { alert(1) }'" Note that arbitrary HTML and JavaScript would be difficult to inject, because angle brackets, ampersands and double-quotes would still be escaped.

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation

Assigner

CPANSec

References

2 references

URL	Tags
https://github.com/abw/Template2/issues/327	issue-tracking
https://github.com/abw/Template2/pull/337/changes…	patch

Impacted products

1 product

Vendor	Product	Version
TODDR	Template::Plugin::HTML	Affected: 0 , ≤ 3.102 (custom)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-5090

Vulnerability from fkie_nvd - Published: 2026-05-19 22:16 - Updated: 2026-05-20 14:17

Severity

6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Summary

References

	URL	Tags
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/abw/Template2/issues/327
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/abw/Template2/pull/337/changes/11c78a7a771d4af505efeb754a0b8775689c2eae
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/05/19/40

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected.\n\nThe html_filter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected.  For example, the variable \"var\" in\n\n    \u003ca id=\u0027ref\u0027 title=\u0027[% var | html %]\u0027\u003e\n\nwould not be properly escaped. An attacker could insert some limited HTML and JavaScript, for example,\n\n    var = \" \u0027 onclick=\u0027while (true) { alert(1) }\u0027\"\n\nNote that arbitrary HTML and JavaScript would be difficult to inject, because angle brackets, ampersands and double-quotes would still be escaped."
    }
  ],
  "id": "CVE-2026-5090",
  "lastModified": "2026-05-20T14:17:02.610",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-05-19T22:16:39.003",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/abw/Template2/issues/327"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/abw/Template2/pull/337/changes/11c78a7a771d4af505efeb754a0b8775689c2eae"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/19/40"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}

GHSA-XHG9-J279-J625

Vulnerability from github – Published: 2026-05-20 00:31 – Updated: 2026-05-20 15:35

Details

Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected.

The html_filter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected. For example, the variable "var" in

<a id='ref' title='[% var | html %]'>

would not be properly escaped. An attacker could insert some limited HTML and JavaScript, for example,

var = " ' onclick='while (true) { alert(1) }'"

Note that arbitrary HTML and JavaScript would be difficult to inject, because angle brackets, ampersands and double-quotes would still be escaped.

Severity

6.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-5090"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-19T22:16:39Z",
    "severity": "MODERATE"
  },
  "details": "Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected.\n\nThe html_filter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected.  For example, the variable \"var\" in\n\n    \u003ca id=\u0027ref\u0027 title=\u0027[% var | html %]\u0027\u003e\n\nwould not be properly escaped. An attacker could insert some limited HTML and JavaScript, for example,\n\n    var = \" \u0027 onclick=\u0027while (true) { alert(1) }\u0027\"\n\nNote that arbitrary HTML and JavaScript would be difficult to inject, because angle brackets, ampersands and double-quotes would still be escaped.",
  "id": "GHSA-xhg9-j279-j625",
  "modified": "2026-05-20T15:35:26Z",
  "published": "2026-05-20T00:31:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5090"
    },
    {
      "type": "WEB",
      "url": "https://github.com/abw/Template2/issues/327"
    },
    {
      "type": "WEB",
      "url": "https://github.com/abw/Template2/pull/337/changes/11c78a7a771d4af505efeb754a0b8775689c2eae"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/19/40"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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.

Action not permitted

CVE-2026-5090 (GCVE-0-2026-5090)

FKIE_CVE-2026-5090

GHSA-XHG9-J279-J625

Tags

Sightings

Nomenclature