CVE-2023-52082 — Lychee is a free photo-management tool

Lychee is a free photo-management tool. Prior to 5.0.2, Lychee is vulnerable to an SQL injection on any binding when using mysql/mariadb. This injection is only active for users with the `.env` settings set to DB_LOG_SQL=true and DB_LOG_SQL_EXPLAIN=true. The defaults settings of

01What is this vulnerability?

Lychee is a free photo-management tool. Prior to 5.0.2, Lychee is vulnerable to an SQL injection on any binding when using mysql/mariadb. This injection is only active for users with the `.env` settings set to DB_LOG_SQL=true and DB_LOG_SQL_EXPLAIN=true. The defaults settings of Lychee are safe. The patch is provided on version 5.0.2. To work around this issue, disable SQL EXPLAIN logging.

02Affected products

Vendor	Product	Versions
LycheeOrg	Lychee	< 5.0.2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-12-28T15:46:24.291Z
• Last modified: 2024-11-27T15:32:17.641Z

09References

• github.com — https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-rjwv-5j3m-p5x4
• github.com — https://github.com/LycheeOrg/Lychee/commit/33354a2ce7cf700cc4ee537b7b8b94dfc1e84…