The NVD rates CVE-2026-93930 as critical for ThemeREX Tantra CMS versions through 2.9.0, exposing users to object injection risks.
Key points
- NVD assigns a CVSS 9.8 score to CVE-2026-93930
- The flaw affects ThemeREX Group Tantra versions up to 2.9.0
- The vulnerability involves deserialization of untrusted data
The National Vulnerability Database has rated a flaw in ThemeREX Group Tantra as critical. This object injection vulnerability affects all versions of the software through 2.9.0.
What happened
The NVD record for CVE-2026-93930 identifies a deserialization of untrusted data weakness in ThemeREX Group Tantra. This issue allows for object injection within the application. The vulnerability is cataloged under CWE-502 by the NVD. The flaw exists in the software from its initial release through version 2.9.0. No earlier versions are listed as unaffected in the record. The NVD assigns a CVSS base score of 9.8 to this specific issue. This high score reflects the severity of the potential impact on affected systems. The vulnerability enables attackers to inject objects into the deserialization process.
Why it matters
Organizations using ThemeREX Tantra CMS versions up to 2.9.0 are directly exposed to this risk. The critical rating indicates a severe potential for exploitation by threat actors. Object injection flaws can lead to remote code execution or other serious outcomes. The NVD classification highlights the urgency for administrators to assess their environments. Systems running the affected versions remain vulnerable until mitigated. The widespread use of CMS platforms makes this a significant concern for web security. The lack of version exclusions means all users through 2.9.0 are at risk.
The fix
- Verify if your installation runs ThemeREX Tantra version 2.9.0 or earlier
- Check vendor communications for an official patch or updated version
- Monitor the NVD record for changes in status or mitigation advice
- Isolate affected systems if exploitation is suspected in your network
What to do and how to stay safe: ThemeREX
- Audit your web servers to identify any instances of ThemeREX Tantra CMS
- Review network logs for signs of abnormal deserialization activity or injection attempts
- Restrict access to administrative interfaces of the CMS to trusted networks
- Prepare to apply an update once the vendor provides a confirmed fix
Step-by-step guide: Patch Testing: How to Verify Fixes Without Breaking Your Systems
General security guidance from the Crypt Weekly newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
Which versions of ThemeREX Tantra are affected by CVE-2026-93930?
All versions of ThemeREX Group Tantra from the initial release through version 2.9.0 are affected by this vulnerability.
What is the CVSS score for this vulnerability?
The NVD rates CVE-2026-93930 with a CVSS score of 9.8, classifying it as critical.
What type of weakness is this?
This is a deserialization of untrusted data vulnerability, categorized as CWE-502, allowing object injection.
