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CVE-2025-4803

21
FAUCET Score

CVE-2025-4803 is a PHP Object Injection vulnerability affecting the Glossary by WPPedia – Best Glossary plugin for WordPress, versions 1.3.0 and earlier. Authenticated attackers with Administrator-level access can exploit this by injecting a PHP Object through the 'posttypes' parameter. The CVSS score is 7.2 (HIGH), indicating a severe impact on confidentiality, integrity, and availability if a suitable POP chain from another plugin or theme is present. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
SteinreinGlossary By WPPedia – Best Glossary Plugin For WordPress
>= 0, <= 1.3.0CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 23rd percentile among its peer group of 5,538 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / bfiessinger/wppedia/blob/1d0b8568349c9c9479372f845a812eb2aa4b3d09/core/classes/traits/trait-sanitizes-data.php
plugins.trac.wordpress.org / browser/wppedia/tags/1.3.0/core/classes/class-options.php
plugins.trac.wordpress.org / browser/wppedia/tags/1.3.0/core/classes/traits/trait-sanitizes-data.php
wordfence.com / threat-intel/vulnerabilities/id/53fb54bc-6eaa-4e99-a41c-e59a9bae81e5