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TI-2026-86422 Aliases CVE-2026-119073GHSA-mv4q-mp57-pwq7

Stored XSS in Live Composer plugin via post module pagination

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 Live Composer WordPress plugin before 2.1.23 does not escape a pagination setting supplied through its post-listing module shortcodes before outputting it in an HTML attribute (CWE-79). An authenticated user with the Contributor role or above can store a script that runs in other users' browsers. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

The Live Composer WordPress plugin before 2.1.23 does not escape a pagination setting supplied through its post-listing module shortcodes before outputting it in an HTML attribute, allowing users with the Contributor role and above to perform Stored Cross-Site Scripting attacks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00164 5th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Live Composer (Unknown): 2.1.23

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
UnknownLive Composerbefore 2.1.232.1.23Patch availableCNA
  • Live Composer VendorUnknown Affected before 2.1.23 Fixed in 2.1.23 Patch available CNA

Remediation

Update Live Composer to version 2.1.23, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

  • Fix · CNA Live Composer (Unknown) Fixed in 2.1.23

Fixed in the same release

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

  • Release ·

    Live Composer 2.1.23

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2025-44025 Stored cross-site scripting in Live Composer WordPress pluginPriority LOW 16
    Show all 2 records →

Timeline

  1. 2026-11-07 Threatist record created from CVE-2026-119073
  2. 2026-11-07 Alias added: GHSA-mv4q-mp57-pwq7
  3. 2026-11-07 CVSS score added · CISA ADP
  4. 2026-11-07 Weakness changed · CISA ADP
  5. 2026-11-07 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