Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Commons BCEL.



This only happens when you're using Class2HTML to generate webpages for possibly-attacker-controlled class files, where Class2HTML emitters write attacker class-file strings into HTML unescaped (stored XSS in reports).



This issue affects Apache Commons BCEL: before 6.13.0.



Users are recommended to upgrade to version 6.13.0, which fixes the issue.
Published: 2026-10-06
Score: 2.3 Low
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Tue, 06 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 06 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
Description Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Commons BCEL. This only happens when you're using Class2HTML to generate webpages for possibly-attacker-controlled class files, where Class2HTML emitters write attacker class-file strings into HTML unescaped (stored XSS in reports). This issue affects Apache Commons BCEL: before 6.13.0. Users are recommended to upgrade to version 6.13.0, which fixes the issue.
Title Apache Commons BCEL: Class2HTML emits unescaped class strings, enabling stored XSS
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-10-06T19:58:59.113Z

Reserved: 2026-10-03T12:02:46.675Z

Link: CVE-2026-105111

cve-icon Vulnrichment

Updated: 2026-10-06T19:58:54.843Z

cve-icon NVD

Status : Received

Published: 2026-10-06T20:17:15.463

Modified: 2026-10-06T20:17:15.463

Link: CVE-2026-105111

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')