e107: Server-Side Request Forgery (SSRF) in the remote file fetcher

published 2026-05-26 5 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-31847

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

e107 is a content management system (CMS). Prior to 2.3.4, you can access the local environment by specifying the URL of the local environment from "Image/File URL:" of "From a remote location" in "Media Manager" on the administrator screen. This vulnerability is fixed in 2.3.4.

Patch / fix

fixed in 1 links 2

e107 e107 2.3.4

github.com/e107inc/e107@40b2d11 commit
github.com/e107inc/e107@5f98cc9 commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-05-26)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/e107inc/e107/security/advisories/GHSA-92fr-7h4f-22pp referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

e107inc e107

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

Sources

CVE List CVE-2026-43936
NVD CVE-2026-43936

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary