CVE-2025-5499 json
slackero phpwcms image_resized.php getimagesize deserialization
published 2025-06-03 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-16733
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
A vulnerability classified as critical has been found in slackero phpwcms up to 1.9.45/1.10.8. Affected is the function is_file/getimagesize of the file image_resized.php. The manipulation of the argument imgfile leads to deserialization. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.9.46 and 1.10.9 is able to address this issue. It is recommended to upgrade the affected component.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 17 mo ago
Exploit prediction
0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/3em0/cve_repo/blob/main/phpwcms/image_resized%23getimagesize.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| CNA | 3.0 | 7.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| CNA | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- slackero phpwcms
Classification
References
-
github.com
/slackero/phpwcms/releases/tag/v1.10.9
patch, release-notes
-
github.com
/3em0/cve_repo/blob/main/phpwcms/image_resized%23getimagesize.md
exploit, third-party-advisory
-
vuldb.com
/?id.310914
vdb-entry, technical-description, third-party-advisory
-
vuldb.com
/?ctiid.310914
signature, permissions-required, vdb-entry
-
vuldb.com
/?submit.578082
third-party-advisory, vdb-entry
-
vuldb.com
/?submit.578083
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2025-5499
- NVD CVE-2025-5499
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.