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Vulnerabilities

Vulnerability · CVE-2025-4803

The Glossary by WPPedia – Best Glossary plugin for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.0 via deserializat

Published May 21, 2025 · catalog updated Apr 8, 2026 · Glossary by WPPedia – Best Glossary plugin for WordPress

Check if you run it

No confirmed exploitation is on record for CVE-2025-4803. EPSS is 0.74%. Act only if a listed version of Glossary by WPPedia – Best Glossary plugin for WordPress is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.74%
Remediation
Vendor / distro source
Affected products
vendor steinrein Glossary by WPPedia – Best Glossary plugin for WordPress 0 ≤1.3.0

The Glossary by WPPedia – Best Glossary plugin for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.0 via deserialization of untrusted input from the 'posttypes' parameter. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme ins

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor steinrein Glossary by WPPedia – Best Glossary plugin for WordPress 0 ≤1.3.00 ≤1.3.0

How to fix CVE-2025-4803

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-4803. EPSS is 0.74%. Act only if a listed version of Glossary by WPPedia – Best Glossary plugin for WordPress is installed.

Which versions are affected?

Compare what you have installed with steinrein Glossary by WPPedia – Best Glossary plugin for WordPress 0 ≤1.3.0 0 ≤1.3.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.74%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 21, 2025 · EUVD

    Detected

    The Glossary by WPPedia – Best Glossary plugin for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.0 via deserialization of untrusted input from the 'posttypes' parameter. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerabl

  2. Apr 8, 2026 · EUVD

    Updated

    The Glossary by WPPedia – Best Glossary plugin for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.0 via deserialization of untrusted input from the 'posttypes' parameter. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerabl

Sources

  • CVE.orgVulnerability recordCVE-2025-4803

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-4803

    30-day exploitation probability 0.7%

    first.org
  • EUVDVulnerability recordEUVD-2025-16073

    The Glossary by WPPedia – Best Glossary plugin for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.3.0 via deserialization of untrusted input from the 'posttypes' parameter. This makes it possible for authenticated atta

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.