HomeWordPress vulnerabilitiesSeraphinite Accelerator
Seraphinite Accelerator vulnerabilities
Seraphinite Accelerator has 9 known vulnerabilities in this database. The most recent published record is dated 16 Sep 2026.
- Known vulnerabilities
- 9
- Active installs
- 50,000+
- Latest version
- 2.29.26
- Last updated
- 18 Sep 2026
- Most recent
- 16 Sep 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Denial of service CVE-2026-87828 | Medium 5.7 | Before 2.29.24 | Fixed in 2.29.24 | 16 Sep 2026 |
| Cross-site scripting (XSS) CVE-2026-17532 | Medium 6.1 | Up to 2.29.15 | Fixed in a later version (latest 2.29.26) | 5 Aug 2026 |
| Broken access control CVE-2026-3056 | Medium 4.3 | Up to 2.28.14 | Fixed in a later version (latest 2.29.26) | 4 Mar 2026 |
| Sensitive data exposure CVE-2026-3058 | Medium 4.3 | Before 2.28.15 | Fixed in 2.28.15 | 4 Mar 2026 |
| Cross-site request forgery (CSRF) CVE-2025-6059 | Medium 4.3 | Up to 2.27.21 | Fixed in a later version (latest 2.29.26) | 14 Jun 2025 |
| Server-side request forgery (SSRF) CVE-2024-1568 | Medium 6.4 | Up to 2.20.52 | Fixed in a later version (latest 2.29.26) | 28 Feb 2024 |
| Cross-site request forgery (CSRF) CVE-2023-5611 | Medium 5.3 | Before 2.20.32 | Fixed in 2.20.32 | 27 Nov 2023 |
| Cross-site scripting (XSS) CVE-2023-5609 | Medium 6.1 | Before 2.2.29 | Fixed in 2.2.29 | 20 Nov 2023 |
| Open redirect CVE-2023-5610 | Medium 5.4 | Before 2.2.29 | Fixed in 2.2.29 | 20 Nov 2023 |
Read the published descriptions
- CVE-2026-87828, 16 Sep 2026
- The Seraphinite Accelerator WordPress plugin before 2.29.24 does not perform a capability check on one of its state-update AJAX actions, allowing authenticated users such as subscribers to write a malformed value that causes an uncaught error on every subsequent admin page load, making the entire admin area inaccessible to all administrators (denial of service). CVE record
- CVE-2026-17532, 5 Aug 2026
- The Seraphinite Accelerator plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'seraph_accel_prep' parameter in versions up to, and including, 2.29.15. This is due to the CacheExtractPreparePageParams() function using PHP's loose inequality operator (!=) to compare the expected HMAC string against the JSON-decoded 'nonce' value - supplying the JSON boolean true causes any non-empty HMAC string to compare as loosely equal, bypassing the signature check - combined with insufficient output escaping in the _CbContentFinishSkip() function, which concatenates the attacker-controlled 'selfTest' field directly into the HTML response body. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a specially crafted link. CVE record
- CVE-2026-3056, 4 Mar 2026
- The Seraphinite Accelerator plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `seraph_accel_api` AJAX action with `fn=LogClear` in all versions up to, and including, 2.28.14. This makes it possible for authenticated attackers, with Subscriber-level access and above, to clear the plugin's debug/operational logs. CVE record
- CVE-2026-3058, 4 Mar 2026
- The Seraphinite Accelerator plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.28.14 via the `seraph_accel_api` AJAX action with `fn=GetData`. This is due to the `OnAdminApi_GetData()` function not performing any capability checks. This makes it possible for authenticated attackers, with Subscriber-level access and above, to retrieve sensitive operational data including cache status, scheduled task information, and external database state. CVE record
- CVE-2025-6059, 14 Jun 2025
- The Seraphinite Accelerator plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.27.21. This is due to missing or incorrect nonce validation on the 'OnAdminApi_CacheOpBegin' function. This makes it possible for unauthenticated attackers to perform several administrative actions, including deleting the cache, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. CVE record
- CVE-2024-1568, 28 Feb 2024
- The Seraphinite Accelerator plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.20.52 via the OnAdminApi_HtmlCheck function. This makes it possible for authenticated attackers, with subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services. CVE record
- CVE-2023-5611, 27 Nov 2023
- The Seraphinite Accelerator WordPress plugin before 2.20.32 does not have authorisation and CSRF checks when resetting and importing its settings, allowing unauthenticated users to reset them CVE record
- CVE-2023-5609, 20 Nov 2023
- The Seraphinite Accelerator WordPress plugin before 2.2.29 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin CVE record
- CVE-2023-5610, 20 Nov 2023
- The Seraphinite Accelerator WordPress plugin before 2.2.29 does not validate the URL to redirect any authenticated user to, leading to an arbitrary redirect CVE record
What to do if you run Seraphinite Accelerator
If you run Seraphinite Accelerator, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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