CVE-2026-126697

*** Pendiente de traducción *** The Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4 was distributed with a hidden update mechanism that fetched Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4 updates from its author&amp;#39;s own server instead of WordPress.org, which was used to push a backdoored build to sites, allowing the attacker controlling that server to inject arbitrary content into pages and to deliver arbitrary code to affected sites.<br /> <br /> Version 5.2.1, as published on WordPress.org, bundled the Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4 Update Checker library (updater/ directory) configured to poll https://anadnet.com/updates/?action=get_metadata&amp;slug=quick-pagepost-redirect-Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4. In March 2021 that server delivered a modified 5.2.3 build, different from the 5.2.3 later published on WordPress.org, which kept the update channel and added a the_content filter that, for logged-out visitors on single posts and pages, fetched content from https://w.anadnet.com/bro/3/ (passing the site host, request URI and visitor User-Agent) and prepended the response to the post (observed serving SEO spam links to search engine crawlers). Because the version string matched a later WordPress.org release, affected sites were not offered a clean update until 5.2.4.<br /> <br /> Indicators of compromise:<br /> - Outbound requests to anadnet.com or w.anadnet.com<br /> - An updater/ directory (Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4 Update Checker, Puc v4p10) inside wp-content/Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4/quick-pagepost-redirect-Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4/<br /> - The strings filter_the_content_in_the_main_loop, ppr_pro, QQQEND or w.anadnet.com in page_post_redirect_Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4.php<br /> - page_post_redirect_Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4.php with MD5 ad717da18cf8a2b69899c0d7dafee05a (tampered 5.2.3)<br /> <br /> Remediation: remove the Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4 (it has been closed on WordPress.org), or at minimum reinstall the clean 5.2.4 from WordPress.org, delete any leftover updater/ directory, verify the files with "wp Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4 verify-checksums quick-pagepost-redirect-Quick Page/Post Redirect Plugin WordPress plugin before 5.2.4", clear the opcode cache, and treat any site that ran the tampered build as potentially compromised.