Plugins · sg-cachepress · data as of 2026-11-01
Is Speed Optimizer safe? Known vulnerabilities and latest version
- Latest version
- 7.8.5
- Last updated
- 2026-10-20
- Active installs
- 1+ million
- Known issues on record
- 5
- Unpatched in latest
- 0
- Tested up to WP
- 7.1.4 · PHP 7.0+
Boost your website performance and page speed, and increase conversions with powerful caching, frontend, media, and environment optimizations. — by SiteGround
What to do
- Update to the latest version (7.8.5). Anything older than 7.8.5 has at least one known issue listed below. Dashboard → Updates, or Plugins → “update now”.
- If you cannot update right away, deactivate it until you can.
- Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan.
With WP-CLI: wp plugin get sg-cachepress --field=version shows what you run; wp plugin update sg-cachepress updates it.
Check your version
Known vulnerabilities
5 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version.
low 3.5 CVE-2026-111737 · published 2026-10-23
Stored cross-site scripting (XSS) in Speed Optimizer (older than 7.8.5)
- Affected
- older than 7.8.5
- Fixed in
- 7.8.5
- Access needed (per CVSS)
- Needs an admin-level account; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by CISA ADP
Details from the advisory
The Speed Optimizer WordPress plugin before 7.8.5 does not sanitise or escape some of its settings before outputting them in the head of front-end pages, which could allow high-privilege users such as admins to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in a multisite setup).
medium 5.5 CVE-2026-111738 · published 2026-10-23
Missing authorization check in Speed Optimizer (older than 7.8.5)
- Affected
- older than 7.8.5
- Fixed in
- 7.8.5
- Access needed (per CVSS)
- Needs an admin-level account
- Range from
- CVE record (the advisory publisher) · score by CISA ADP
Details from the advisory
The Speed Optimizer WordPress plugin before 7.8.5 does not verify network-level privilege before applying an option change to the whole multisite network, nor restrict which option may be changed, allowing a site administrator who is not a Super Admin to create or overwrite network-wide options.
medium 6.4 CVE-2026-15421 · published 2026-08-19
Stored cross-site scripting (XSS) in Speed Optimizer (7.8.0 and older)
- Affected
- 7.8.0 and older
- Fixed in
- 7.8.1 *
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber)
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Speed Optimizer – The All-In-One Performance-Boosting Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Image Tag Attributes in all versions up to, and including, 7.8.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is only exploitable when the site administrator has enabled the Lazy Load Media option in the plugin settings.
NVD CVE-2026-15421Wordfence advisoryCode change (fix)Plugin source
critical 9.8 CVE-2019-25217 · published 2024-10-16
Remote code execution in Speed Optimizer (older than 5.0.13)
- Affected
- older than 5.0.13
- Fixed in
- 5.0.13
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The SiteGround Optimizer plugin for WordPress is vulnerable to authorization bypass leading to Remote Code Execution and Local File Inclusion in versions up to, and including, 5.0.12 due to incorrect use of an access control attribute on the switch_php function called via the /switch-php REST API route. This allows attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.
medium 5.3 CVE-2024-32532 · published 2024-04-17
Missing authorization check in Speed Optimizer (7.4.6 and older)
- Affected
- 7.4.6 and older
- Fixed in
- 7.5.0
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Missing Authorization vulnerability in SiteGround Speed Optimizer.This issue affects Speed Optimizer: from n/a through 7.4.6.
Recent activity
- 2026-10-20 — latest release on wordpress.org (7.8.5).
- 2026-10-23 — Stored cross-site scripting (XSS) disclosed (CVE-2026-111737), fixed in 7.8.5.
- 2026-10-23 — Missing authorization check disclosed (CVE-2026-111738), fixed in 7.8.5.
- 2026-08-19 — Stored cross-site scripting (XSS) disclosed (CVE-2026-15421), fixed in 7.8.1.
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Where this data comes from
- Version, last update, installs: wordpress.org/plugins/sg-cachepress (Plugins API), fetched 2026-11-01.
- Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-01. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.
Badge for your site or docs (states facts with a date, not a verdict):
<a href="https://laskyr.com/plugins/sg-cachepress"><img src="https://laskyr.com/plugins/sg-cachepress/badge.svg" alt="Speed Optimizer vulnerability status"></a>