CVE-2026-92591
MediumCVSS 5.9Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
Craft CMS versions 5.0.0 through 5.10.12 treat a database connection failure as meaning Craft is not installed, making anonymous installer actions (including install/validate-site) reachable on an installed production site when PHP remains available but MySQL is not. An authenticated attacker with a valid guest session and CSRF token can read environment variables, including the security key, database credentials, or API keys. Fixed in 5.10.13.
Risk Assessment
An attacker can obtain critical secrets such as the Craft security key, database credentials, or API keys, potentially leading to full system compromise. The vulnerability requires an independent database outage but is easy to exploit when it occurs.
Recommendation
Upgrade Craft CMS to version 5.10.13 or later. Monitor database availability and consider additional protections against unauthorized access to installer actions.
Other vulnerabilities in Craft CMS
See all- CVE-2026-84802Medium
Craft CMS versions from 5.7.0 before 5.10.12 contain an information disclosure vulnerability in AssetsController::actionMoveInfo that fails to enforce volume permissions. Authenticated control panel users can submit POST requests to the assets/move-info endpoint with arbitrary folderIds to retrieve asset count and total storage size for volumes they cannot access.
- CVE-2026-84801High
Craft CMS versions before 5.10.11 fail to validate admin status in the actionGetPasswordResetUrl endpoint, allowing non-admin users with administrateUsers permission to mint password reset URLs for administrator accounts. Attackers can generate a valid reset URL and set a new password, enabling complete control-panel takeover.
- CVE-2026-84800High
Craft CMS versions >= 5.0.0-RC1 and < 5.10.11 contain a missing authorization vulnerability in AssetsController::actionReplaceFile. When a request supplies sourceAssetId and targetFilename but omits assetId, the replacePeerFiles permission is never enforced, allowing an authenticated low-privilege author with replaceFiles permission to overwrite peer asset files.
- CVE-2026-84798High
Craft CMS versions >= 5.0.0-RC1 and < 5.10.11 fail to perform an independent authorization check in ElementsController::actionDeleteForSite(). The method checks permissions only against the user's own provisional draft, then deletes the canonical element without re-checking, allowing an authenticated user without deleteEntriesForSite permission to hard-delete entries.
- CVE-2026-84797Medium
Craft CMS versions before 5.10.11 contain an authorization bypass vulnerability in ElementsController::actionDuplicate() that allows authenticated users with createEntries permission to delete peer provisional drafts. Attackers can exploit the deleteProvisionalDraft parameter to delete another user's unsaved draft without proper authorization checks, gaining access to the victim's in-progress content.
- CVE-2026-84796High
Craft CMS versions before 5.10.11 contain a site scope bypass vulnerability in GraphQL entry mutation resolvers that fail to validate siteId through ArgumentManager::prepareArguments(). Attackers with tokens scoped to one site can read, modify, or delete entries across unauthorized sites.
- CVE-2026-84793Medium
Craft CMS versions from 5.0.0-RC1 before 5.10.11 contain a stored cross-site scripting vulnerability in the site name field that fails to sanitize input. Administrators can inject arbitrary JavaScript payloads in the site name that execute when other users view the control panel settings pages.
- CVE-2026-84792Medium
Craft CMS versions before 5.10.11 contain a broken access control vulnerability in the element-indexes/save-elements endpoint that allows control panel users to move entries into sections they cannot edit. Attackers with limited section permissions can relocate or publish entries to unauthorized sections by overwriting the sectionId attribute after initial authorization checks, bypassing the destination section permission validation.
- CVE-2026-31266High
Craft CMS version 5.9.5 and earlier contains a Missing Authorization vulnerability in the migrate endpoint (/actions/app/migrate).
- CVE-2026-112776Critical
Craft CMS from 5.0.0 before 5.11.0 contains an authorization bypass vulnerability that allows site-scoped GraphQL tokens to mutate other sites' content because requireAllowedSite() is not enforced. Attackers holding a site-A token can create entries in site B via supplied siteId and delete entries, categories, tags, and assets shared across sites.
Original NVD description (English source)
Craft CMS 5.0.0 through 5.10.12 treats a database connection failure as meaning that Craft is not installed, which makes anonymous installer actions — including install/validate-site — reachable on an installed production site whenever PHP remains available but the configured MySQL endpoint does not. The action accepts a site name, serializes it through Site::getName(), and expands ${NAME} expressions using App::env(). An unauthenticated attacker who obtained a guest session cookie and matching CSRF token before the outage and whose session remains valid during it can submit a predictable variable name (for example Craft's conventional CRAFT_SECURITY_KEY) and receive its value, disclosing Craft secrets, process environment variables, $_SERVER entries, or PHP constants such as the security key, database credentials, or API keys. The issue requires an independently occurring database outage; the vulnerability itself provides no way to induce it. Fixed in 5.10.13.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

