CVE-2026-92973

medium

Description

ansi2html versions 1.7.0a0 through 1.9.3 contain a cross-site scripting vulnerability in OSC 8 hyperlink handling that fails to validate or escape URL targets. Attackers controlling ANSI text input can inject javascript: schemes or terminate href attributes to execute arbitrary scripts in the context of pages displaying converted output.

References

https://www.vulncheck.com/advisories/ansi2html-1.7-0a0-through-1.9.3-cross-site-scripting-via-osc-8

https://github.com/pycontribs/ansi2html/commit/89d1c231c60ac52005f3b21bbba551c786c554fc

https://github.com/pycontribs/ansi2html/blob/v1.9.3/src/ansi2html/converter.py#L345-L349

https://github.com/pycontribs/ansi2html

Details

Source: Mitre, NVD

Published: 2026-09-17

Updated: 2026-09-17

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

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

Severity: Medium

CVSS v4

Base Score: 5.3

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

Severity: Medium

EPSS

EPSS: 0.00225