{"id":"CVE-2021-24126","aliases":["EUVD-2021-11040","GHSA-2564-4rf9-wv93"],"status":"published","title":"Envira Gallery Lite \u003c 1.8.3.3 - Authenticated Stored Cross-Site Scripting","description":"Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin, versions before 1.8.3.3, did not properly sanitise the images metadata (namely title) before outputting them in the generated gallery, which could lead to privilege escalation.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00661,"percentile":0.52109,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-03-18T14:57:48Z","modified":"2026-06-17T03:39:26Z","products":[{"vendor":"enviragallery","product":"envira_gallery"},{"vendor":"unknown","product":"envira gallery lite"}],"references":[{"url":"https://wpscan.com/vulnerability/f3952bd1-ac2f-4007-9e19-6c44a22465f3","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24126"},{"url":"https://github.com/advisories/GHSA-2564-4rf9-wv93"}],"sources":{"cve":[{"id":"CVE-2021-24126","title":"Envira Gallery Lite \u003c 1.8.3.3 - Authenticated Stored Cross-Site Scripting","description":"Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin, versions before 1.8.3.3, did not properly sanitise the images metadata (namely title) before outputting them in the generated gallery, which could lead to privilege escalation.","status":"published","published":"2021-03-18T14:57:48Z","modified":"2024-08-03T19:21:18.224Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11040","description":"Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin, versions before 1.8.3.3, did not properly sanitise the images metadata (namely title) before outputting them in the generated gallery, which could lead to privilege escalation.","status":"published","published":"2021-03-18T14:57:48Z","modified":"2024-08-03T19:21:18Z","updated_at":"2026-11-03T03:24:59.661237Z"}],"ghsa":[{"id":"GHSA-2564-4rf9-wv93","title":"Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin,...","description":"Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin, versions before 1.8.3.3, did not properly sanitise the images metadata (namely title) before outputting them in the generated gallery, which could lead to privilege escalation.","status":"published","published":"2022-05-24T17:44:49Z","modified":"2023-01-29T05:06:06Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:45:56.584389Z"}],"nvd":[{"id":"CVE-2021-24126","description":"Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin, versions before 1.8.3.3, did not properly sanitise the images metadata (namely title) before outputting them in the generated gallery, which could lead to privilege escalation.","status":"published","published":"2021-03-18T15:15:13.917Z","modified":"2026-06-17T03:39:26.247Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:50.805771Z"}]}}