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TI-2026-83475 Aliases CVE-2026-118438GHSA-wm86-p7cw-7wvq

Stored XSS in Firelight Lightbox via image src attribute

Priority LOW 32CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

The Firelight Lightbox WordPress plugin before 2.3.24 does not properly escape image attribute values before processing them in the browser, a cross-site scripting flaw (CWE-79). An attacker with contributor-level access or above can inject arbitrary web scripts that run when another user views or previews the affected content. An exploit link is listed in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

The Firelight Lightbox WordPress plugin before 2.3.24 does not properly escape image attribute values before processing them in the browser, which could allow users with contributor-level access and above to inject arbitrary web scripts that execute when another user views or previews the affected content.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0029 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Firelight Lightbox (Unknown): 2.3.24

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownFirelight Lightboxbefore 2.3.242.3.24Patch availableCNA
  • Firelight Lightbox VendorUnknown Affected before 2.3.24 Fixed in 2.3.24 Patch available CNA

Remediation

Update Firelight Lightbox to version 2.3.24 or later, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA Firelight Lightbox (Unknown) Fixed in 2.3.24

Timeline

  1. 2026-10-31 Threatist record created from CVE-2026-118438
  2. 2026-10-31 Alias added: GHSA-wm86-p7cw-7wvq
  3. 2026-11-01 CVSS score added · CISA ADP
  4. 2026-11-01 Weakness changed · CISA ADP
  5. 2026-11-01 CISA SSVC decision points changed

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences