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TI-2026-02578 Aliases CVE-2026-2987GHSA-ppcm-cqr4-pgxg

Simple Ajax Chat <= 20260217 - Unauthenticated Stored Cross-Site Scripting via 'c'

Priority LOW 27CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
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 Simple Ajax Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'c' parameter in versions up to, and including, 20260217 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00201 9th 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
specialkSimple Ajax Chat – Add a Fast, Secure Chat Boxup to 20260217—No fix listedCNA
  • Simple Ajax Chat – Add a Fast, Secure Chat Box Vendorspecialk Affected up to 20260217 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-2987
  2. 2026-10-03 Alias added: GHSA-ppcm-cqr4-pgxg

References

Other 2

  • 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