CVE-2025-15375: EyouCMS arcpagelist Ajax.php unserialize deserialization
Vulnerability summary
CVE-2025-15375 is a high (CVSS 8.8) Improper Input Validation vulnerability in eyoucms. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 39.2% of scored vulnerabilities. 2 public exploits are recorded.
Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 31-12-2025PublishedVulnerability first disclosed.
- 24-02-2026Last modifiedVulnerability information updated.
Description
A flaw has been found in EyouCMS up to 1.7.7. The impacted element is the function unserialize of the file application/api/controller/Ajax.php of the component arcpagelist Handler. Executing a manipulation of the argument attstr can lead to deserialization. The attack can be launched remotely. The exploit has been published and may be used. The vendor is "[a]cknowledging the existence of the vulnerability, we have completed the fix and will release a new version, v1.7.8".
CVSS metrics
7 scores · 2 sources · 4 versions- NVDNIST2.1LowCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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:XDiffers
- CVE.orgCNA6.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:CDiffers
- NVDNIST6.5MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.45% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundExploit Reference (note-hxlab.wetolink.com)
Maturity: unknown
Exploit Reference (note-hxlab.wetolink.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-502Deserialization of Untrusted DataThe product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Eyoucms1 product
- eyoucms< 1.7.8
1 vendor · 1 product