Read the docs
TI-2026-70471 Aliases CVE-2026-88826GHSA-pgv8-gvc5-v6h7

Stored cross-site scripting in SmugMug Embed WordPress plugin

Priority LOW 39CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

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

Summary

The SmugMug Embed WordPress plugin through 3.13 stores gallery data through an AJAX action that lacks authorisation and CSRF checks, and it does not sanitise that data before output (CWE-79). An unauthenticated remote attacker can store arbitrary web scripts that run when an administrator opens the plugin's settings screen. A public exploit is linked in the references.

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

Description from the CNA

The SmugMug Embed WordPress plugin through 3.13 does not have authorisation or CSRF checks on an AJAX action that stores gallery data, and does not sanitise or escape that data before outputting it, allowing unauthenticated users to store arbitrary web scripts that execute when an administrator views the SmugMug Embed WordPress plugin through 3.13's settings screen.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00152 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

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
UnknownSmugMug Embedup to 3.13—No fix listedCNA
  • SmugMug Embed VendorUnknown Affected up to 3.13 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for SmugMug Embed.

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

Timeline

  1. 2026-10-11 Threatist record created from CVE-2026-88826
  2. 2026-10-11 Alias added: GHSA-pgv8-gvc5-v6h7

References

Exploit 1

Sources

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