FastCMS Template Menu menu cross site scripting

published 2025-02-16 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-2105

cvss: 2.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits: 0; none known

A vulnerability has been found in FastCMS up to 0.1.5 and classified as problematic. This vulnerability affects unknown code of the file /fastcms.html#/template/menu of the component Template Menu. The manipulation leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 20 mo ago (2025-02-18)

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

gitee.com https://gitee.com/xjd2020/fastcms/issues/IBKJ1W referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	4.8	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	3.1	2.4	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
CNA	3.0	2.4	CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
CNA	2.0	3.3	AV:N/AC:L/Au:M/C:N/I:P/A:N
CNA	4.0	4.8	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/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	4.8	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

n/a FastCMS

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-94 Improper Control of Generation of Code

References

gitee.com /xjd2020/fastcms/issues/IBKJ1W
exploit, issue-tracking
vuldb.com /?id.295942
vdb-entry, permissions-required
vuldb.com /?ctiid.295942
signature, permissions-required, vdb-entry

Sources

CVE List CVE-2025-1332
NVD CVE-2025-1332

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