yiisoft Yii2 SortableIterator.php getIterator deserialization

published 2025-03-24 19 mo ago modified 2026-06-17 4 mo ago also GHSA-88m2-j94x-v4fx , EUVD-2025-7345

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

A vulnerability, which was classified as critical, has been found in yiisoft Yii2 up to 2.0.45. Affected by this issue is the function getIterator of the file symfony\finder\Iterator\SortableIterator.php. The manipulation leads to deserialization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-03-24)

Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/gaorenyusi/gaorenyusi/blob/main/Yii2.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P
CNA	4.0	5.3	CVSS: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: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
GitHub	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Affected packages

ecosystem	package	affected	fixed in
packagist	yiisoft/yii2-dev	<=2.0.45	no fix listed

Affected products

yiisoft Yii2

Classification

Weakness

CWE-502 Deserialization of Untrusted Data
CWE-20 Improper Input Validation

References

github.com /gaorenyusi/gaorenyusi/blob/main/Yii2.md
exploit, web, third-party-advisory
vuldb.com /?id.300710
vdb-entry, technical-description, web, press/media-coverage
vuldb.com /?ctiid.300710
signature, permissions-required, web, press/media-coverage, vdb-entry
vuldb.com /?submit.521709
third-party-advisory, web, press/media-coverage, vdb-entry
nvd.nist.gov /vuln/detail/CVE-2025-2689
advisory
github.com /yiisoft/yii2
package

Sources

CVE List CVE-2025-2689
GitHub Advisory GHSA-88m2-j94x-v4fx
NVD CVE-2025-2689

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.

Summary