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TI-2025-19771 Aliases CVE-2025-26900GHSA-xw96-38mm-h5jg

WordPress Flexmls® IDX Plugin Plugin <= 3.14.27 - PHP Object Injection vulnerability

Priority MEDIUM 43CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

Deserialization of Untrusted Data vulnerability in flexmls Flexmls® IDX flexmls-idx allows Object Injection.This issue affects Flexmls® IDX: from n/a through <= 3.14.27.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00603 49th 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
flexmlsFlexmls® IDXup to 3.14.27—No fix listedCNA
  • Flexmls® IDX Vendorflexmls Affected up to 3.14.27 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-2025-26900
  2. 2026-10-03 Alias added: GHSA-xw96-38mm-h5jg

References

  • TI-2026-20487 WordPress Flexmls® IDX plugin <= 3.15.9 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
  • TI-2025-00731 Flexmls® IDX <= 3.14.27 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
  • TI-2024-09775 Flexmls® IDX Plugin <= 3.14.26 - Authenticated (Contributor+) Stored Cross-Site Scripting via API parameters CVSS 3.1MEDIUM 6.4
  • TI-2024-08088 Flexmls® IDX Plugin <= 3.14.22 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
  • TI-2025-41339 WordPress Flexmls® IDX plugin <= 3.15.7 - Open Redirection vulnerability CVSS 3.1MEDIUM 4.7

Sources