CVE-2022-50906

e107 CMS v3.2.1 - Admin Upload Restriction Bypass + Stored XSS

e107 CMS 3.2.1 contains an upload restriction bypass vulnerability that allows authenticated administrators to upload malicious SVG files through the media manager. Attackers with admin privileges can exploit this vulnerability to upload SVG files with embedded cross-site scripting (XSS) payloads that can execute arbitrary scripts when viewed.

Affected

e107 · e107 CMS

CVSS v4.0 VULNCHECK

4.8 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 NVD

4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS

0.43% chance of exploitation in the next 30 days, 36th percentile

Published

2026-01-13

Updated

2026-04-07

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50910

Security advisories

• https://www.vulncheck.com/advisories/e-cms-admin-upload-restriction-bypass-stored-xss
• https://e107.org
• https://e107.org/download

References

• CVE Record
• NVD entry