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CVE-2025-26900

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

9.8 Critical

CVE-2025-26900 is a critical vulnerability (CVSS 9.8) in Flexmls Flexmls® Idx, published February 25, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. No source names a fixed version.

What does this mean?
Severity
9.8 CriticalCVSS 3.1, CVE List
Exploit chance
0.60%EPSS, 49th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.60%Up 0.6 points since Feb 27, 2025
90%50%10%1%

Affected products

What each source reports

CVE List Score used9.8

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

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.

Record
CVE-2025-26900
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02
EUVDEUVD-2025-53869.8

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.

Record
EUVD-2025-5386
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-xw96-38mm-h5jg9.8

Deserialization of Untrusted Data vulnerability in flexmls Flexmls® IDX allows Object Injection....

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

Record
GHSA-xw96-38mm-h5jg
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02
NVD9.8

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.

Record
CVE-2025-26900
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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