What is CVE-2023-39109?

CVE-2023-39109 is a high-severity vulnerability in Rconfig, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.8/10. Published 2023-08-01.

How severe is CVE-2023-39109?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2023-39109 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SSRF in Rconfig

CVE-2023-39109

rconfig v3.9.4 was discovered to contain a Server-Side Request Forgery (SSRF) via the path_a parameter in the doDiff Function of /classes/compareClass.php. This vulnerability allows authenticated attackers to make arbitrary requests via injection of crafted URLs.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2023-08-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.034 (88.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000

Affected products

Rconfig — versions 3.9.4

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Public proof-of-concept exploits

zer0yu/CVE_

References

github.com/zer0yu/CVE_Request/blob/master/rConfig/rConfig_path_a.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-39109?: CVE-2023-39109 is a high-severity vulnerability in Rconfig, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.8/10. Published 2023-08-01.
How severe is CVE-2023-39109?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-39109 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.