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TI-2020-17939 Aliases CVE-2020-35314GHSA-xw74-8r5v-3xpv

A remote code execution vulnerability in the installUpdateThemePluginAction function in…

Priority MEDIUM 64CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
None
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 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

A remote code execution vulnerability in the installUpdateThemePluginAction function in index.php in WonderCMS 3.1.3, allows remote attackers to upload a custom plugin which can contain arbitrary code and obtain a webshell via the theme/plugin installer.

Why it matters now

EPSS 0.26912 98th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wondercms:wondercms:3.1.3:*:*:*:*:*:*:*3.1.3VulnerableWonderCMS
  • cpe:2.3:a:wondercms:wondercms:3.1.3:*:*:*:*:*:*:* Versions 3.1.3 Vulnerable ·WonderCMS

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-35314
  2. 2026-10-03 Alias added: GHSA-xw74-8r5v-3xpv

References

Exploit 3

Advisory 1

  • TI-2024-21288 A cross-site scripting (XSS) vulnerability in the Settings section of WonderCMS v3.4.3… CVSS 3.1CRITICAL 9.6
  • TI-2024-18303 A Server-Side Request Forgery (SSRF) in the installUpdateThemePluginAction function of… CVSS 3.1CRITICAL 9.1
  • TI-2020-17938 A server-side request forgery (SSRF) vulnerability in the addCustomThemePluginRepository… CVSS 3.1CRITICAL 9.8
  • TI-2025-35425 WonderCMS 3.5.0 is vulnerable to Server-Side Request Forgery (SSRF) in the custom module… CVSS 3.1MEDIUM 6.5
  • TI-2024-27571 A Server-Side Request Forgery (SSRF) in the Plugins Page of WonderCMS v3.4.3 allows… CVSS 3.1HIGH 7.1
  • TI-2024-21624 A cross-site scripting (XSS) vulnerability in the Settings section of WonderCMS v3.4.3… CVSS 3.1MEDIUM 5.9
See all 35 →

Sources

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