PHPGurukul Small CRM registration.php cross site scripting

published 2025-09-02 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-26453

cvss: 3.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

A flaw has been found in PHPGurukul Small CRM 4.0. Affected by this issue is some unknown functionality of the file /registration.php. Executing manipulation of the argument Username can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been published and may be used.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 14 mo ago (2025-09-03)

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/YoSheep/cve/blob/main/PHPGurukul%20Small%20CRM%20in%20PHP%20V4.0%20Multiple%20Stored%20Cross-Site%20Scripting%20(XSS)%20Vulnerabilities.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
CNA	3.0	3.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
CNA	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR
CNA	4.0	2.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/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:X
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N

Affected products

PHPGurukul Small CRM

Classification

Weakness

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

References

github.com /YoSheep/cve/blob/main/PHPGurukul%20Small%20CRM%20in%20PHP%20V4.0%20Multiple%20Stored%20Cross-Site%20Scripting
exploit, third-party-advisory
vuldb.com /?id.322181
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.322181
signature, permissions-required, vdb-entry
vuldb.com /?submit.642025
third-party-advisory, vdb-entry
phpgurukul.com /
product

Sources

CVE List CVE-2025-9834
NVD CVE-2025-9834

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