Riskcovery

CVE-2026-105111

Apache Commons BCEL: Class2HTML emits unescaped class strings, enabling stored XSS

State
Published
Severity
2.3 Low
Published
Oct 6, 2026
Updated
Oct 7, 2026
Reserved
Oct 3, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.02.3 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:Napache
3.14.7 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:Napache

Weaknesses

  • CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

Affected Products

ProductVersions
Apache Commons BCELApache Software Foundation
  • before 6.13.0Affected
  • before fb72c225cbc6ec3d94060ed6edb269f07428d504Affected

References

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