The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting.
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Score 6.1 from GitHub Security Advisory published 2023-05-30. NVD baseline CVSS 6.1; sources differ by 0.0.
The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting.
May 30, 2023
January 9, 2025
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
HW2023@POC@EXP@CVE-2023-2023
Open source ↗Custom 404 Pro < 3.7.3 - Cross-Site Scripting
Open source ↗Explore the affected products and dependency analysis for CVE-2023-2023
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