Vulnerability · CVE-2025-8889
The Compress & Upload WordPress plugin before 1.0.5 does not properly validate uploaded files, allowing high privilege users such as admin to upload arbitrary files on the server e
Published Sep 9, 2025 · catalog updated Nov 13, 2025 · Unknown Compress & Upload
Check if you run it
No confirmed exploitation is on record for CVE-2025-8889. EPSS is 0.29%. Act only if a listed version of Unknown Compress & Upload is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Low3.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.29%
- Remediation
- Version ranges on file
- Affected products
- vendor Unknown Compress & Upload 0 <1.0.5
The Compress & Upload WordPress plugin before 1.0.5 does not properly validate uploaded files, allowing high privilege users such as admin to upload arbitrary files on the server even when they should not be allowed to (for example in multisite setup)
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Unknown Compress & Upload 0 <1.0.50 <1.0.5
How to fix CVE-2025-8889
Recommended remediation
Affected version ranges suggest a fixed boundary. Verify against the vendor advisory for your release.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-8889. EPSS is 0.29%. Act only if a listed version of Unknown Compress & Upload is installed.
Which versions are affected?
Compare what you have installed with Unknown Compress & Upload 0 <1.0.5 0 <1.0.5. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.29%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Sep 9, 2025 · EUVD
Detected
The Compress & Upload WordPress plugin before 1.0.5 does not properly validate uploaded files, allowing high privilege users such as admin to upload arbitrary files on the server even when they should not be allowed to (for example in multisite setup)
Nov 13, 2025 · EUVD
Updated
The Compress & Upload WordPress plugin before 1.0.5 does not properly validate uploaded files, allowing high privilege users such as admin to upload arbitrary files on the server even when they should not be allowed to (for example in multisite setup)
Sources
- CVE.orgVulnerability recordCVE-2025-8889
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-8889
30-day exploitation probability 0.29%
first.org - EUVDVulnerability recordEUVD-2025-27223
The Compress & Upload WordPress plugin before 1.0.5 does not properly validate uploaded files, allowing high privilege users such as admin to upload arbitrary files on the server even when they should not be allowed to (for example in multisite setup)
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.