SSRF in Wondercms

CVE-2020-35313

A server-side request forgery (SSRF) vulnerability in the addCustomThemePluginRepository function in index.php in WonderCMS 3.1.3 allows remote attackers to execute arbitrary code via a crafted URL to the theme/plugin installer.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.452 (98.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Wondercms — versions 3.1.3
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Product, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-35313?
CVE-2020-35313 is a critical-severity vulnerability in Wondercms, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.8/10. Published 2021-04-20.
How severe is CVE-2020-35313?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-35313 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.