Reflected cross-site scripting in Thelia address pages
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
Thelia through 2.6.0 has Smarty templates address.html and address-update.html that fail to escape double quotes in the next parameter. This missing escaping, classified as CWE-79, lets an attacker inject JavaScript that runs in a victim's browser through reflected cross-site scripting. An attacker must get an authenticated user to visit a crafted link, and that user must open it.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Thelia v2.6.0's Smarty templates (address.html and address-update.html) fail to properly escape double quotes in the “next” parameter, enabling reflected Cross‑Site Scripting (XSS) when an authenticated user visits the malicious link containing attacker‑controlled JavaScript.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Thelia.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-12 Threatist record created from CVE-2026-103527
- 2026-10-12 Alias added: GHSA-643g-3jrv-qcww
- 2026-10-16 CVSS score added · CISA ADP
- 2026-10-16 Weakness changed · CISA ADP
- 2026-10-16 CISA SSVC decision points changed
References
More Thelia vulnerabilities
- 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
Sources
- CVE-2026-103527 · CVE Program
- CVE-2026-103527 · NVD
- FIRST EPSS
- GHSA-643g-3jrv-qcww · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences