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TI-2026-83499 Aliases CVE-2026-119162GHSA-3mxh-mc2j-6w4v

Stored DOM-based XSS in User Submitted Posts WordPress plugin

Priority LOW 31CWE-79Published · Updated

Key facts

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

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

Summary

The User Submitted Posts plugin (Enable Users to Submit Posts from the Front End) for WordPress from specialk is affected in all versions up to and including 20260916. Insufficient input sanitization and output escaping (CWE-79) let an unauthenticated attacker store scripts that run in visitors' browsers when they open the injected page. By default the submission waits for admin approval, but with the publish immediately option enabled the stored script goes live without moderator action.

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

Description from the CNA

The User Submitted Posts – Enable Users to Submit Posts from the Front End plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'user-submitted-content' parameter in all versions up to, and including, 20260916 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. On a default installation the submitted post is held as Pending and requires admin approval before the payload is reachable by other visitors; however, if the plugin's "publish immediately" option is enabled, no approval step exists and the stored payload becomes live without any moderator interaction.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00241 15th percentileScored 2026-11-07
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
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
specialkUser Submitted Posts – Enable Users to Submit Posts from the Front Endup to 20260916—No fix listedCNA
  • User Submitted Posts – Enable Users to Submit Posts from the Front End Vendorspecialk Affected up to 20260916 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:plugin-planet:user_submitted_posts:*:*:*:*:*:*:*:*——specialk
  • cpe:2.3:a:plugin-planet:user_submitted_posts:*:*:*:*:*:*:*:* Versions — — ·specialk

Remediation

The sources list no fixed version for the User Submitted Posts plugin (Enable Users to Submit Posts from the Front End).

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

Timeline

  1. 2026-10-31 Threatist record created from CVE-2026-119162
  2. 2026-10-31 Alias added: GHSA-3mxh-mc2j-6w4v
  3. 2026-11-01 Priority changed: MEDIUM → LOW
  4. 2026-11-01 CISA SSVC decision points changed

References

Other 6

  • TI-2024-01845 Simple Ajax Chat < 20240223 - Unauthenticated Stored XSS CVSS 3.1HIGH 7.1
  • TI-2024-02296 Simple Ajax Chat < 20240412 - Admin+ Stored XSS CVSS 3.1MEDIUM 5.4
  • TI-2024-04645 User Submitted Posts < 20240516 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
  • TI-2019-15241 User Submitted Posts <= 20190312 - Unauthenticated Arbitrary File Upload CVSS 3.1CRITICAL 9.8
  • TI-2022-10732 WordPress Simple Ajax Chat plugin <= 20220115 - Sensitive Information Disclosure vulnerability CVSS 3.1HIGH 7.5
  • TI-2023-24406 WordPress User Submitted Posts Plugin <= 20230902 is vulnerable to Arbitrary File Upload CVSS 3.1CRITICAL 9.8
See all 44 →

Sources

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