CVE-2021-36899
WordPress Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 - Authenticated Reflected Cross-Site Scripting (XSS) vulnerability
Authenticated (admin+) Reflected Cross-Site Scripting (XSS) vulnerability in Gabe Livan's Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 at WordPress.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
WordPress Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 - Authenticated Reflected Cross-Site Scripting (XSS) vulnerability
Authenticated (admin+) Reflected Cross-Site Scripting (XSS) vulnerability in Gabe Livan's Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 at WordPress.
- Record
CVE-2021-36899- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-23475
Authenticated (admin+) Reflected Cross-Site Scripting (XSS) vulnerability in Gabe Livan's Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 at WordPress.
- Record
EUVD-2021-23475- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q34g-xwpj-xqx4
Authenticated (admin+) Reflected Cross-Site Scripting (XSS) vulnerability in Gabe Livan's Asset...
Authenticated (admin+) Reflected Cross-Site Scripting (XSS) vulnerability in Gabe Livan's Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 at WordPress.
- Record
GHSA-q34g-xwpj-xqx4- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
Authenticated (admin+) Reflected Cross-Site Scripting (XSS) vulnerability in Gabe Livan's Asset CleanUp: Page Speed Booster plugin <= 1.3.8.4 at WordPress.
- Record
CVE-2021-36899- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-36899 is a medium vulnerability (CVSS 4.8) in Asset Cleanup\ Page Speed Booster Project, published October 11, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. No source names a fixed version.
References
patchstack.com/database/vulnerability/wp-asset-clean-up/wordpress-asset-cleanup-page-speed-booster-plugin-1-3-8-4-authenticated-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
wordpress.org/plugins/wp-asset-clean-up
nvd.nist.gov/vuln/detail/CVE-2021-36899
github.com/advisories/GHSA-q34g-xwpj-xqx4