{"id":"CVE-2021-24667","aliases":["EUVD-2021-11579","GHSA-7x7j-cf43-24q8"],"status":"published","title":"Gallery Blocks with Lightbox \u003c 2.2.1- Authenticated Stored Cross-Site Scripting","description":"A stored cross-site scripting vulnerability has been discovered in : Simply Gallery Blocks with Lightbox (Version – 2.2.0 \u0026 below). The vulnerability exists in the Lightbox functionality where a user with low privileges is allowed to execute arbitrary script code within the context of the application. This vulnerability is due to insufficient validation of image parameters in meta data.","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":0.00618,"percentile":0.50138,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-08-30T14:11:27Z","modified":"2026-06-17T03:40:25Z","products":[{"vendor":"gallerycreator","product":"gallery blocks with lightbox. image gallery, (html5 video , youtube, vimeo) video gallery and lightbox for native gallery"},{"vendor":"simplygallery","product":"simply_gallery_blocks_with_lightbox"},{"vendor":"unknown","product":"gallery blocks with lightbox. image gallery, (html5 video , youtube, vimeo) video gallery and lightbox for native gallery"}],"references":[{"url":"https://www.fortiguard.com/zeroday/FG-VD-21-060","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://wpscan.com/vulnerability/5925b263-6d6f-4a03-a98a-620150dff8f7","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24667"},{"url":"https://github.com/advisories/GHSA-7x7j-cf43-24q8"}],"sources":{"cve":[{"id":"CVE-2021-24667","title":"Gallery Blocks with Lightbox \u003c 2.2.1- Authenticated Stored Cross-Site Scripting","description":"A stored cross-site scripting vulnerability has been discovered in : Simply Gallery Blocks with Lightbox (Version – 2.2.0 \u0026 below). The vulnerability exists in the Lightbox functionality where a user with low privileges is allowed to execute arbitrary script code within the context of the application. This vulnerability is due to insufficient validation of image parameters in meta data.","status":"published","published":"2021-08-30T14:11:27Z","modified":"2024-08-03T19:42:16.073Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11579","description":"A stored cross-site scripting vulnerability has been discovered in : Simply Gallery Blocks with Lightbox (Version – 2.2.0 \u0026 below). The vulnerability exists in the Lightbox functionality where a user with low privileges is allowed to execute arbitrary script code within the context of the application. This vulnerability is due to insufficient validation of image parameters in meta data.","status":"published","published":"2021-08-30T14:11:27Z","modified":"2024-08-03T19:42:16Z","updated_at":"2026-11-03T03:24:56.31224Z"}],"ghsa":[{"id":"GHSA-7x7j-cf43-24q8","title":"A stored cross-site scripting vulnerability has been discovered in : Simply Gallery Blocks with...","description":"A stored cross-site scripting vulnerability has been discovered in : Simply Gallery Blocks with Lightbox (Version – 2.2.0 \u0026 below). The vulnerability exists in the Lightbox functionality where a user with low privileges is allowed to execute arbitrary script code within the context of the application. This vulnerability is due to insufficient validation of image parameters in meta data.","status":"published","published":"2022-05-24T22:28:24Z","modified":"2023-01-30T05:05:17Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:47:14.398767Z"}],"nvd":[{"id":"CVE-2021-24667","description":"A stored cross-site scripting vulnerability has been discovered in : Simply Gallery Blocks with Lightbox (Version – 2.2.0 \u0026 below). The vulnerability exists in the Lightbox functionality where a user with low privileges is allowed to execute arbitrary script code within the context of the application. This vulnerability is due to insufficient validation of image parameters in meta data.","status":"published","published":"2021-08-30T15:15:07.847Z","modified":"2026-06-17T03:40:25.333Z","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":"2026-11-02T14:06:57.67549Z"}]}}