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VulnerabilityPublished

CVE-2026-13605: PhotoSwipe (WordPress plugin) · Cross-Site Scripting (XSS)

Affects PhotoSwipe (WordPress plugin)Source CVE Database V5

0

Not known to be exploited · CVSS 6.8 Medium.

Data as of 28 Oct 2026, 05:11 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
PhotoSwipeAffected
  • <=4.1.1.1
Fixed in–

AI-suggested

Until a patch is available, restrict Author-level user capabilities where possible and avoid clicking suspicious links in the PhotoSwipe plugin context. Monitor vendor channels for updates and apply official fixes when released.

Description

CVE-2026-13605 is a cross-site scripting (XSS) vulnerability in the PhotoSwipe WordPress plugin up to version 4.1.1.1. It arises because the plugin uses the title attribute of author-supplied link markup as a lightbox caption without proper escaping. This attribute bypasses post-content sanitization for users without unfiltered_html capability, allowing an authenticated user with Author-level access to inject JavaScript payloads. These payloads execute in the browsers of visitors, including administrators, who click the malicious link.

References

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