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Stored cross-site scripting in Envira Gallery via gallery crop dimensions

Priority LOW 31CWE-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 Envira Gallery WordPress plugin before 1.16.1 does not sanitise or escape user-supplied gallery display configuration values before storing and outputting them in an image tag attribute. Users with the Author role and above can inject arbitrary web scripts (CWE-79) that run when any visitor, including an administrator, views a page containing the affected gallery. The references include a link to an exploit.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The Envira Gallery WordPress plugin before 1.16.1 does not sanitise or escape user-supplied gallery display configuration values before storing them and outputting them in an image tag attribute, allowing users with the Author role and above to inject arbitrary web scripts that execute when any visitor, including an administrator, views a page containing the affected gallery.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00229 13th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Envira Gallery (Unknown): 1.16.1

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
UnknownEnvira Gallerybefore 1.16.11.16.1Patch availableCNA
  • Envira Gallery VendorUnknown Affected before 1.16.1 Fixed in 1.16.1 Patch available CNA

Remediation

Update Envira Gallery to version 1.16.1 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Envira Gallery (Unknown) Fixed in 1.16.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Envira Gallery 1.16.1

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-69030 Stored cross-site scripting in Envira Gallery via gallery image IDPriority LOW 31

Timeline

  1. 2026-10-07 Threatist record created from CVE-2026-104653
  2. 2026-10-07 Alias added: GHSA-2475-cpcf-ghxx
  3. 2026-10-07 CVSS score added · CISA ADP
  4. 2026-10-07 Weakness changed · CISA ADP
  5. 2026-10-07 CISA SSVC decision points changed

References

Sources