What’s Vulnerable › Vulnerabilities

CVE-2025-12691: Photonic Gallery & Lightbox for Flickr, SmugMug & Others <= 3.21 - Authenticated (Contributor+) Stored Cross-Site Scripting via Caption Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-18 · updated 2026-10-18
• Weakness: CWE-79

Description

The Photonic Gallery & Lightbox for Flickr, SmugMug & Others plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's lightbox functionality in all versions up to, and including, 3.21 due to insufficient input sanitization and output escaping on user supplied caption attribute. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page.

Affected products

• sayontan Photonic Gallery & Lightbox for Flickr, SmugMug & Others: through 3.21

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3392284%40photonic&old=3336902%40photonic&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9f21f4a4-4b50-4396-8d94-26d68c0eb3a3?source=cve

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