{"id":"CVE-2021-24918","aliases":["EUVD-2021-11830","GHSA-j9qp-w82r-g5cf"],"status":"published","title":"Smash Balloon Social Post Feed \u003c 4.0.1 - Subscriber+ Arbitrary Plugin Settings Update to Stored XSS","description":"The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.","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":0.00675,"percentile":0.52706,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-11-29T08:25:51Z","modified":"2026-06-17T03:41:07Z","products":[{"vendor":"smashballoon","product":"smash_balloon_social_post_feed"},{"vendor":"syed balkhi","product":"smash balloon social post feed"},{"vendor":"unknown","product":"smash balloon social post feed"}],"references":[{"url":"https://wpscan.com/vulnerability/5d252ad7-bf28-44f3-8cd0-c4fe05c48f35","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://jetpack.com/2021/10/29/security-issues-patched-in-smash-balloon-social-post-feed-plugin/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24918"},{"url":"https://github.com/advisories/GHSA-j9qp-w82r-g5cf"}],"sources":{"cve":[{"id":"CVE-2021-24918","title":"Smash Balloon Social Post Feed \u003c 4.0.1 - Subscriber+ Arbitrary Plugin Settings Update to Stored XSS","description":"The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.","status":"published","published":"2021-11-29T08:25:51Z","modified":"2024-08-03T19:49:13.472Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11830","description":"The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.","status":"published","published":"2021-11-29T08:25:51Z","modified":"2024-08-03T19:49:13Z","updated_at":"2026-11-03T03:24:55.415131Z"}],"ghsa":[{"id":"GHSA-j9qp-w82r-g5cf","title":"The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or...","description":"The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.","status":"published","published":"2021-11-30T00:00:49Z","modified":"2023-02-01T05:06:30Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:50:21.781869Z"}],"nvd":[{"id":"CVE-2021-24918","description":"The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.","status":"published","published":"2021-11-29T09:15:08.027Z","modified":"2026-06-17T03:41:07.99Z","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":"2026-11-02T14:07:01.811115Z"}]}}