The TopBar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.0. This is due to missing or incorrect nonce validation on the fme_nb_topbar_save_settings() function. This makes it possible for unauthenticated attackers to update the plugin's settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVE-2025-10300
MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence
Score 4.3 from GitHub Security Advisory published 2025-10-15. NVD baseline CVSS 4.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity43% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 6%
- KEV
- Not listed
Published
October 15, 2025
Last Modified
April 15, 2026
References (4)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/topbar/trunk/admin/class-fme-nb-topbaradmin.php#L131
- security@wordfencehttps://plugins.trac.wordpress.org/browser/topbar/trunk/admin/class-fme-nb-topbaradmin.php#L38
- security@wordfencehttps://wordpress.org/plugins/topbar/
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/8e68cb68-45ab-4c2f-a105-1ef01da42453?source=cve
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Frequently asked(5)
What is CVE-2025-10300?
CVE-2025-10300 is a medium vulnerability published on October 15, 2025. The TopBar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.0. This is due to missing or incorrect nonce validation on the fmenbtopbarsavesettings() function. This makes it possible for unauthenticated attackers to update the plugin's…
When was CVE-2025-10300 disclosed?
CVE-2025-10300 was first published in the National Vulnerability Database on October 15, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-10300 actively exploited?
CVE-2025-10300 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.6% of all scored CVEs.
What is the CVSS score of CVE-2025-10300?
CVE-2025-10300 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2025-10300?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-10300, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-10300
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