CERT/CC Warns of Eleven Vulnerabilities in Thelia 2.6.0 and 2.6.1
Tech GuruQuick Answer
CERT/CC published VU#162329 for Thelia 2.6.0 and 2.6.1 and reported that a patch was not available. Restrict administrative access, limit upload and template-editing capability, prevent PHP execution in user-writable directories, apply proxy controls, and retain evidence while seeking supported remediation.
Confirm Scope And Apply The Supported Remediation
What to do now: Identify Thelia 2.6.0 and 2.6.1 deployments; restrict administrative interfaces; disable or tightly limit uploads and template editing; remove PHP execution from user-writable paths; apply rate limiting, MIME filtering, and URL allowlisting; monitor exploitation paths; and obtain supported vendor remediation.
Last verified: 2026-10-12 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | Thelia 2.6.0 and 2.6.1 |
|---|---|
| Advisory | VU#162329 |
| CVEs | CVE-2026-103521, CVE-2026-103522, CVE-2026-103523, CVE-2026-103524, CVE-2026-103526, CVE-2026-103527, CVE-2026-103528, CVE-2026-103529, CVE-2026-103535, CVE-2026-103537, CVE-2026-107248 |
| Authoritative release date | 2026-10-12 00:00:00 UTC |
| Authority revision date | 2026-10-12 14:52:00 UTC |
| Affected versions | Thelia 2.6.0 and 2.6.1 as identified in CERT/CC Vulnerability Note VU#162329. |
| Fixed version | No patch was available when CERT/CC published revision 1; apply the authority's access restrictions and hardening measures while obtaining supported vendor remediation |
| CVSS base score | Not provided by the authority |
| CVSS severity | Not provided by the authority |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
CERT/CC documented multiple command-execution, server-side template injection, cross-site scripting, open-redirect, and username-enumeration paths and said coordinated vendor remediation was not available at publication.
What To Validate Now
- Inventory. Locate Thelia 2.6.0 and 2.6.1 deployments, versions, enabled features, exposure paths, owners, and dependent services.
- Establish applicability. Compare each deployment with the authority's affected-version statement: Thelia 2.6.0 and 2.6.1 as identified in CERT/CC Vulnerability Note VU#162329. Do not infer applicability from product family or severity alone.
- Remediate. Apply No patch was available when CERT/CC published revision 1; apply the authority's access restrictions and hardening measures while obtaining supported vendor remediation through the supported vendor or project channel, following the current advisory and change-control requirements.
- Validate. Confirm the resulting version or managed-service state, exercise representative functionality and recovery paths, monitor for regressions, and document exceptions.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Compensating controls reduce exposure but are not a patch. Test checkout, content, template, upload, administration, and reverse-proxy behavior; preserve web, application, WAF, and authentication logs for investigation. Preserve the authority snapshot, asset and owner records, before-and-after versions, change approval, installation output, validation results, exceptions, and rollback evidence.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
