projectworlds Online Notes Sharing System Parameters login.php sql injection

published 2026-03-22 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-14289

cvss: 7.3; 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 31%
public exploits: 0; none known

A vulnerability was detected in projectworlds Online Notes Sharing System 1.0. This issue affects some unknown processing of the file /login.php of the component Parameters Handler. The manipulation of the argument User results in sql injection. The attack can be executed remotely. The exploit is now public and may be used.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 7 mo ago (2026-03-24)

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/juzidddd/CVE/issues/4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	7.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	7.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	5.5	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:X
CNA	3.1	7.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

projectworlds Online Notes Sharing System

Classification

Weakness

CWE-89 Improper Neutralization of Special Elements used in an SQL Command
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

github.com /juzidddd/CVE/issues/4
exploit, issue-tracking
vuldb.com /?id.352357
vdb-entry, technical-description
vuldb.com /?ctiid.352357
signature, permissions-required
vuldb.com /?submit.774686
third-party-advisory

Sources

CVE List CVE-2026-4540
NVD CVE-2026-4540

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