VulnerabilityAnalyzed
CVE-2026-33738
The `/feed` endpoint is publicly accessible without authentication, allowing any RSS reader to execute attacker-controlled JavaScript.
MEDIUM 4.8EPSS 0.21%
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 4.0
- 4.8 MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.21% probability · 12th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- lycheeorg/lychee
- Source
- security-advisories@github.com
References
- https://github.com/LycheeOrg/Lychee/commit/d2e2606a0223d5a384d5b806db1b31eb587adc5cPatch
- https://github.com/LycheeOrg/Lychee/pull/4218Issue Tracking
- https://github.com/LycheeOrg/Lychee/releases/tag/v7.5.3Release Notes
- https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5574-7f3r-hm9jExploit, Vendor Advisory
- https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5574-7f3r-hm9jExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.