CVE-2026-33738
March 26, 2026
Lychee is a free, open-source photo-management tool. Prior to version 7.5.3, the photo "description" field is stored without HTML sanitization and rendered using "{!! $item->summary !!}" (Blade unescaped output) in the RSS, Atom, and JSON feed templates. The "/feed" endpoint is publicly accessible without authentication, allowing any RSS reader to execute attacker-controlled JavaScript. Version 7.5.3 fixes the issue.
Affected Packages
https://github.com/LycheeOrg/Lychee.git (GITHUB):
Affected version(s) >=v4.0.0-alpha.1 <v7.5.3Fix Suggestion:
Update to version v7.5.3https://github.com/LycheeOrg/Lychee.git (GITHUB):
Affected version(s) >=v4.0.0-alpha.1 <v7.5.3Fix Suggestion:
Update to version v7.5.3https://github.com/LycheeOrg/Lychee.git (GITHUB):
Affected version(s) >=v4.0.0-alpha.1 <v7.5.3Fix Suggestion:
Update to version v7.5.3https://github.com/LycheeOrg/Lychee.git (GITHUB):
Affected version(s) >=v4.0.0-alpha.1 <v7.5.3Fix Suggestion:
Update to version v7.5.3https://github.com/LycheeOrg/Lychee.git (GITHUB):
Affected version(s) >=v4.0.0-alpha.1 <v7.5.3Fix Suggestion:
Update to version v7.5.3https://github.com/LycheeOrg/Lychee.git (GITHUB):
Affected version(s) >=v4.0.0-alpha.1 <v7.5.3Fix Suggestion:
Update to version v7.5.3Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.11
