How severe is CVE-2025-12126?

CVE-2025-12126 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-12126 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-12126?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-12126 have an EU (EUVD) identifier?

Yes. CVE-2025-12126 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-60928.

When was CVE-2025-12126 published?

CVE-2025-12126 was published on 2025-11-11 and last updated on 2026-06-17.

CVE-2025-12126

CVE-2025-12126 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-60928
Weakness: CWE-639
Published: 2025-11-11
Last modified: 2026-06-17

Description

The The Total Book Project plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.0 via several functions due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Contributor-level access and above, to perform several actions like moving/deleting/creating chapters in books that do not belong to them.

Frequently asked questions

What is CVE-2025-12126?: The The Total Book Project plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.0 via several functions due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Contributor-level access and above, to perform several actions like moving/deleting/creating chapters in books that do not belong to them.
How severe is CVE-2025-12126?: CVE-2025-12126 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-12126 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-12126?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-12126 have an EU (EUVD) identifier?: Yes. CVE-2025-12126 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-60928.
When was CVE-2025-12126 published?: CVE-2025-12126 was published on 2025-11-11 and last updated on 2026-06-17.

References

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