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CVE-2026-66434: WordPress Photonic Gallery & Lightbox for Flickr, SmugMug & Others plugin <= 3.33 - Cross Site Scripting (XSS) vulnerability

• Severity: medium (CVSS 6.5 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: 2026-07-27 · updated 2026-10-24
• Weakness: CWE-79

Description

Contributor Cross Site Scripting (XSS) in Photonic Gallery & Lightbox for Flickr, SmugMug & Others <= 3.33 versions.

Affected products

• Sayontan Sinha Photonic Gallery & Lightbox for Flickr, SmugMug & Others: through 3.33

References

• https://patchstack.com/database/wordpress/plugin/photonic/vulnerability/wordpress-photonic-gallery-lightbox-for-flickr-smugmug-others-plugin-3-33-cross-site-scripting-xss-vulnerability?_s_id=cve

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