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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Ansi2html_Project Ansi2html
cpe:2.3:a:ansi2html_project:ansi2html:*:*:*:*:*:*:*:*
|
1.7.0a0
|
1.9.4
|
References 4
https://github.com/pycontribs/ansi2html/commit/89d1c231c60ac52005f3b21bbba551c7…
Patch Commit
https://github.com/pycontribs/ansi2html/blob/v1.9.3/src/ansi2html/converter.py#…
NVD
https://github.com/pycontribs/ansi2html
NVD
https://www.vulncheck.com/advisories/ansi2html-1.7-0a0-through-1.9.3-cross-site…
VulnCheck Advisory: ansi2html 1.7.0a0 through 1.9.3 Cross-Site Scripting via OSC 8