What’s Vulnerable › Vulnerabilities

CVE-2023-52082: Lychee is vulnerable to an SQL Injection in explain DB queries.

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-28 · updated 2026-06-17
• Weakness: CWE-89

Description

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.

Affected products

• LycheeOrg Lychee: from 4.9.3 before 5.0.2 — fixed in 5.0.2

How to fix

Upgrade to a fixed version: LycheeOrg Lychee 5.0.2. Check the vendor advisory for mitigations.

References

• https://github.com/LycheeOrg/Lychee/commit/33354a2ce7cf700cc4ee537b7b8b94dfc1e84ad4
• https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-rjwv-5j3m-p5x4
• https://github.com/LycheeOrg/Lychee/commit/33354a2ce7cf700cc4ee537b7b8b94dfc1e84ad4
• https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-rjwv-5j3m-p5x4

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