CVE-2026-120212: Web::Simple versions before 0.037 for Perl do not escape single quotes in HTML::Tags output
Source GCVE Database
Not known to be exploited : upgrade to 0.037 soon.
Data as of 10 Nov 2026, 19:33 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 0.037
Exploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade Web-Simple (Perl module) to 0.037.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Web-Simple | Affected
| Fixed in
|
CPANWeb-Simplepkg:cpan/Web-SimpleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to Web::Simple version 0.037 or later where this issue is fixed. If upgrading is not immediately possible, avoid interpolating untrusted input into single-quoted HTML attributes or ensure proper escaping of single quotes in such contexts.
Description
Web::Simple versions prior to 0.037 for Perl do not properly escape single quotes in HTML::Tags output. This allows an attacker who controls a value interpolated into a single-quoted HTML attribute to inject script code by closing the attribute early and adding malicious attributes. Double-quoted attributes are not affected.