CVE-2026-52766: Incorrect Default Permissions

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, the erasespamedcomments wiki action actions/EraseSpamedCommentsAction.php accepts a suppr array from POST and deletes every wiki page whose tag appears in that array, with no authorization check anywhere in the action body or in the...

CVE-2026-52777: Cross-Site Request Forgery (CSRF)

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, there is an authenticated PHP object injection vulnerability in BazarImportAction via unserialize. This issue has been patched in version 4.6.6...

CVE-2026-52763: Improper Neutralization of Special Elements used in an SQL Command

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, the recentchanges action actions/recentchanges.php accepts a period argument from two disjoint parameter spaces. A whitelist validates only the URL form against 'day','week','month'. The action-argument form takes the else branch wi...

PT-2026-86406

Name of the Vulnerable Software and Affected Versions Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails versions prior to 1.31.1 Description This issue involves PHP Object Injection caused by the deserialization of untrusted input within the handle form submission...

CVE-2026-52762: Improper Neutralization of Special Elements Used in a Template Engine

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki Bazar contains a stored Server-Side Template Injection SSTI vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution RCE. An authenticated administrator can place arbitrary Twig...

CVE-2026-52771: Improper Neutralization of Special Elements used in an SQL Command

YesWiki is a wiki system written in PHP. From version 4.2.0 to before version 4.6.6, ApiController::deletePage interpolates a page tag retrieved from the database into a DELETE FROM …links WHERE totag = '$tag' query without escaping. The page tag is attacker-controlled — the POST /api/pages/tag A...

CVE-2026-52777

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, there is an authenticated PHP object injection vulnerability in BazarImportAction via unserialize. This issue has been patched in version 4.6.6...

CVE-2026-52777 YesWiki: Authenticated PHP Object Injection in BazarImportAction via unserialize

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, there is an authenticated PHP object injection vulnerability in BazarImportAction via unserialize. This issue has been patched in version 4.6.6...

EUVD-2026-71808

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, there is an authenticated PHP object injection vulnerability in BazarImportAction via unserialize. This issue has been patched in version 4.6.6...

CVE-2026-52777

CVE-2026-52777 affects YesWiki (a PHP wiki system) prior to version 4.6.6 . The vulnerability is an authenticated PHP object injection in BazarImportAction via an unrestricted unserialize() call in tools/bazar/services/CSVManager.php::importEntry(), which lacks the ['allowed_classes' => false]...

CVE-2026-52777 YesWiki: Authenticated PHP Object Injection in BazarImportAction via unserialize

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, there is an authenticated PHP object injection vulnerability in BazarImportAction via unserialize. This issue has been patched in version 4.6.6...

EUVD-2026-71807

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki through the latest development branch contains a SQL injection vulnerability in ReactionManager::deleteUserReaction that allows any authenticated user to inject arbitrary SQL via the idreaction and id URL path parameters. Th...

CVE-2026-52775 YesWiki Authenticated SQL Injection in ReactionManager

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki through the latest development branch contains a SQL injection vulnerability in ReactionManager::deleteUserReaction that allows any authenticated user to inject arbitrary SQL via the idreaction and id URL path parameters. Th...

EUVD-2026-71804

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, Bazar form-field templates still apply |raw'html' to field.label / field.hint in attribute and label-body contexts, resulting stored XSS in form renders. This issue has been patched in version 4.6.6...

CVE-2026-52771 YesWiki: Second-Order SQL Injection in Page Delete API via Unescaped Page Tag (`ApiController::deletePage`)

YesWiki is a wiki system written in PHP. From version 4.2.0 to before version 4.6.6, ApiController::deletePage interpolates a page tag retrieved from the database into a DELETE FROM …links WHERE totag = '$tag' query without escaping. The page tag is attacker-controlled — the POST /api/pages/tag A...

CVE-2026-52770 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in yeswiki/yeswiki

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki’s public Bazar entry-listing APIs are vulnerable to unauthenticated SQL injection in numeric query / queries filters. For Bazar fields whose value structure is numeric, YesWiki escapes the attacker-controlled filter value bu...

CVE-2026-52767 YesWiki: Unauthenticated ActivityPub Signature-Verification Bypass via `!openssl_verify(...)` accepting `int(-1)`

YesWiki is a wiki system written in PHP. From version 4.6.2 to before version 4.6.6, HttpSignatureService::verifySignature checks the result of PHP's opensslverify with a loose boolean negation - if !opensslverify... throw ... . PHP's opensslverify has four possible return values: 1, 0, -1, and...

CVE-2026-52767

YesWiki versions 4.6.2 through 4.6.5 are affected by a signature-verification bypass in the ActivityPub implementation. The vulnerable function HttpSignatureService::verifySignature() in tools/bazar/services/HttpSignatureService.php uses a loose boolean negation on PHP's openssl_verify(). When op...

CVE-2026-52767 YesWiki: Unauthenticated ActivityPub Signature-Verification Bypass via `!openssl_verify(...)` accepting `int(-1)`

YesWiki is a wiki system written in PHP. From version 4.6.2 to before version 4.6.6, HttpSignatureService::verifySignature checks the result of PHP's opensslverify with a loose boolean negation - if !opensslverify... throw ... . PHP's opensslverify has four possible return values: 1, 0, -1, and...

EUVD-2026-71799

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, the erasespamedcomments wiki action actions/EraseSpamedCommentsAction.php accepts a suppr array from POST and deletes every wiki page whose tag appears in that array, with no authorization check anywhere in the action body or in the...