Vulnerability-Lookup

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

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{
  "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"
    }
  ]
}

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

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-19T23:25:21.832Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/05/19/40"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-5090",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-20T13:45:07.748170Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-20T13:45:31.562Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Template-Toolkit",
          "product": "Template::Plugin::HTML",
          "programFiles": [
            "lib/Template/Plugin/HTML.pm"
          ],
          "programRoutines": [
            {
              "name": "Template::Plugin::HTML::html_filter"
            }
          ],
          "repo": "https://github.com/abw/Template2",
          "vendor": "TODDR",
          "versions": [
            {
              "lessThanOrEqual": "3.102",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-22T06:39:14.682Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/abw/Template2/issues/327"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/abw/Template2/pull/337/changes/11c78a7a771d4af505efeb754a0b8775689c2eae"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to version 3.103."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2024-12-01T00:00:00.000Z",
          "value": "Issue reported in GitHub."
        },
        {
          "lang": "en",
          "time": "2026-02-21T00:00:00.000Z",
          "value": "Pull request submitted."
        },
        {
          "lang": "en",
          "time": "2026-03-22T00:00:00.000Z",
          "value": "Pull request merged."
        },
        {
          "lang": "en",
          "time": "2026-03-22T00:00:00.000Z",
          "value": "Issue reported to CPANSec."
        },
        {
          "lang": "en",
          "time": "2026-03-28T00:00:00.000Z",
          "value": "CVE assigned."
        }
      ],
      "title": "Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected",
      "workarounds": [
        {
          "lang": "en",
          "value": "Attribute values in templates that contain escaped HTML should use double quotes instead of single quotes."
        }
      ],
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-5090",
    "datePublished": "2026-05-19T21:30:03.552Z",
    "dateReserved": "2026-03-28T19:35:11.737Z",
    "dateUpdated": "2026-05-22T06:39:14.682Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

GHSA-XHG9-J279-J625

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

Tags

Sightings

Nomenclature