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TI-2026-70997 Aliases CVE-2026-103521GHSA-pmj2-2x2v-fqcm

Unrestricted file upload in Thelia allows remote code execution

Priority LOW 35CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.

Summary

Thelia versions through 2.6.0 are affected. The document update endpoint does not block executable file types, although the document upload endpoint does (CWE-434). An attacker with administrative Thelia permissions can upload executable files, such as malicious PHP scripts, to achieve remote code execution on the underlying server.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

In Thelia v2.6.0, the document upload endpoint properly blocks the upload of executable file types, but the document update endpoint does not perform the same validation. An attacker with administrative Thelia permissions can exploit this vulnerability to upload arbitrary executable files, such as malicious PHP scripts, to achieve remote code execution on the underlying server.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.006 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TheliaTheliaup to 2.6.0—No fix listedCNA
  • Thelia VendorThelia Affected up to 2.6.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Thelia.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-103521
  2. 2026-10-12 Alias added: GHSA-pmj2-2x2v-fqcm

References

Other 1

  • TI-2026-83555 Stored cross-site scripting in Thelia via coupon customer names CVSS 4.0HIGH 7.4
  • TI-2026-83574 Cross-site request forgery in Thelia back-office product combination routes CVSS 4.0MEDIUM 6.9
  • TI-2026-83557 CSRF in Thelia Page Module delete routes lets attackers remove images CVSS 4.0HIGH 7.0
  • TI-2026-83556 Thelia back office CSRF via leaked URL tokens and unprotected actions CVSS 4.0MEDIUM 5.9
  • TI-2026-71031 CSV formula injection in Thelia exports lets visitors run spreadsheet formulas CVSS 4.0LOW 2.3
  • TI-2026-71005 Thelia translation editor flaws allow remote code execution CVSS 3.1HIGH 8.8
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences