CVE-2026-1165635.4MediumCWE-79

CVE-2026-116563: Photo Gallery, Sliders, Proofing and Themes <= 4.5.4 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment `title` Attribute via Shutter Lightbox innerHTML

smub · Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery

Affected: smub Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

29th percentile

050100

Higher than 29% of scored CVEs

5.4MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the site to have Shutter or Shutter Reloaded selected as the active lightbox, and the injected comment must be approved through WordPress's standard moderation workflow before the payload is rendered to other visitors.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

smub · Photo Gallery, Sliders, Proofing and Themes – NextGEN Galleryup to and including 4.5.4

On the Atlas

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Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Cross-site Scripting
Vendor: smub
Published: October 2026
Band: Unlikely (under 1%), October 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-116563 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.