Photo Swipe <= 4.1.1.1 - Author+ Stored XSS via title Attribute

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-13605
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-29 07:16:41 UTC
Updated2026-07-30 14:16:31 UTC
DescriptionThe PhotoSwipe WordPress plugin through 4.1.1.1 uses the title attribute of author-supplied link markup as a lightbox caption that is written into the page DOM without escaping. Because the title attribute survives the post-content sanitization applied to users who lack the unfiltered_html capability, an authenticated user with Author-level access can store a JavaScript payload that executes in the browser of any visitor, including an administrator, who clicks the link.

Risk And Classification

Primary CVSS: v3.1 6.8 MEDIUM from ADP

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

EPSS: 0.002350000 probability, percentile 0.146670000 (date 2026-08-02)

Problem Types: CWE-79 | CWE-79 Cross-Site Scripting (XSS) | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown PhotoSwipe affected 4.1.1.1 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/7ec73098-99eb-48cb-8ff6-a05110691117 [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Pierre Rudloff (en)

CNA: WPScan (en)

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