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CVE-2020-35313

67
FAUCET Score

CVE-2020-35313 describes a critical Server-Side Request Forgery (SSRF) vulnerability in WonderCMS 3.1.3, specifically within the addCustomThemePluginRepository function. This flaw allows unauthenticated remote attackers to achieve arbitrary code execution by supplying a crafted URL to the theme/plugin installer. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, an authenticated exploit (EDB-49154) is publicly available, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
3.1.3CPE matchmatch criteria
cpe:2.3:a:wondercms:wondercms:3.1.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
45.22%
Probability of exploitation in next 30 days
EPSS Percentile
98.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-49154 · Dec 2, 2020
This CVE's current EPSS score of 0.4522 is in the 96th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / robiso/wondercms
ProductThird Party Advisory
packetstormsecurity.com / files/160310/WonderCMS-3.1.3-Code-Execution-Server-Side-Request-Forgery.html
ExploitThird Party AdvisoryVDB Entry
zetc0de.github.io / post/authenticated-rce-ssrf-wondercms
ExploitThird Party Advisory