CVE-2025-5498slackero phpwcms Custom Source Tab cnt21.readform.inc.php is_file deserialization
- 5.1MediumCVSS base score
- 0.56%Exploitation in 30 daysEPSS · top 53% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
Description
A vulnerability was found in slackero phpwcms up to 1.9.45/1.10.8. It has been rated as critical. This issue affects the function file_get_contents/is_file of the file include/inc_lib/content/cnt21.readform.inc.php of the component Custom Source Tab. The manipulation of the argument cpage_custom leads to deserialization. The attack may be initiated 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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits1
References tagged exploit1 reference
Timeline
ID reserved
By VulDB
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 4.0 | Medium5.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |
| VulDBCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L |
| VulDBCNA (assigner) | 3.0 | Medium5.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L |
| VulDBCNA (assigner) | 2.0 | Medium6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
| NVDNVD · Analyzed | 4.0 | Medium5.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/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 |
- EPSS (exploitation in 30 days)
- 0.56% · top 53% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.1.
Affected products
- affected 1.9.0
- affected 1.9.1
- affected 1.9.2
- affected 1.9.3
- affected 1.9.4
- affected 1.9.5
- affected 1.9.6
- affected 1.9.7
- affected 1.9.8
- affected 1.9.9
- affected 1.9.10
- affected 1.9.11
- affected 1.9.12
- affected 1.9.13
- affected 1.9.14
- affected 1.9.15
- affected 1.9.16
- affected 1.9.17
- affected 1.9.18
- affected 1.9.19
- affected 1.9.20
- affected 1.9.21
- affected 1.9.22
- affected 1.9.23
- affected 1.9.24
- affected 1.9.25
- affected 1.9.26
- affected 1.9.27
- affected 1.9.28
- affected 1.9.29
- affected 1.9.30
- affected 1.9.31
- affected 1.9.32
- affected 1.9.33
- affected 1.9.34
- affected 1.9.35
- affected 1.9.36
- affected 1.9.37
- affected 1.9.38
- affected 1.9.39
- and 15 more
References
References7
- VDB-310913 | slackero phpwcms Custom Source Tab cnt21.readform.inc.php is_file deserialization (opens in a new tab)vdb-entrytechnical-description
- VDB-310913 | CTI Indicators (IOB, IOC, IOA) (opens in a new tab)signaturepermissions-required
- Submit #578054 | phpwcms 1.10.8 phar/php filter vulnerability (opens in a new tab)third-party-advisory
- Submit #578055 | phpwcms 1.10.8 phar/php filter vulnerability (Duplicate) (opens in a new tab)third-party-advisory
- https://github.com/3em0/cve_repo/blob/main/phpwcms/cnt21.readform.inc.php%23file_get_contents.md (opens in a new tab)related
- https://github.com/3em0/cve_repo/blob/main/phpwcms/cnt21.readform.inc.php%23is_file.md (opens in a new tab)exploit
- https://github.com/slackero/phpwcms/releases/tag/v1.10.9 (opens in a new tab)patch
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-16732 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-5498)Record last updated .