# CVE-2026-114627: Web::Simple versions before 0.036 for Perl do not escape values interpolated into double-quoted strings in HTML::Tags output

Status: published. Published: 2026-11-04. Updated: 2026-11-04.

Web::Simple versions before 0.036 for Perl do not escape values interpolated into double-quoted strings in HTML::Tags output.

Under use HTML::Tags or use XML::Tags, a double-quoted string literal becomes a StringThing object that holds each interpolated value as a separate part. The escaping step passes such objects through, and stringify joins their interpolated parts as is. A value passed on its own, as in <p>, $value, </p>, is entity-escaped, but the same value in "Hello $value" is not.

An attacker who controls a value that an application interpolates into a double-quoted string can inject script into the generated page.

## Remediation

- fix: Upgrade to Web-Simple 0.036 or later. (source: CNA: CPANSec)
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: CPANSec) — https://github.com/p5sagit/Web-Simple/commit/01e575827fdd9ba3a08063fd414b1de465380015.patch

## Affected products and versions

-  /  (Web-Simple): ≥ 0; < 0.036 (affected, custom). Source: CNA: CPANSec

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/p5sagit/Web-Simple/commit/01e575827fdd9ba3a08063fd414b1de465380015.patch (CNA: CPANSec; patch)

- https://metacpan.org/release/ETHER/Web-Simple-0.036/changes (CNA: CPANSec; release-notes)

## Provenance

- CNA: CPANSec: https://www.cve.org/CVERecord?id=CVE-2026-114627; retrieved 2026-11-04; source updated 2026-11-04

Revision: 67ac7dc3589969cc06136602c58bc49a956aa5a9f4899e939729f165ad7b1078

Canonical: https://y2.dev/cve/CVE-2026-114627

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