SourceCodester Grade Point Average GPA Calculator Master.php get_scale cross site scripting

published 2023-03-31 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23982

cvss: 3.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 46%
public exploits: 0; none known

A vulnerability was found in SourceCodester Grade Point Average GPA Calculator 1.0 and classified as problematic. Affected by this issue is the function get_scale of the file Master.php. The manipulation of the argument perc leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-224672.

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/E1CHO/cve_hub/blob/main/Grade%20Point%20Average%20(GPA)%20Calculator%20in%20PHP%20and%20SQLite3/Grade%20Point%20Average%20(GPA)%20Calculator%20in%20PHP%20and%20SQLite3%20vlun%201.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	3.0	3.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

SourceCodester Grade Point Average GPA Calculator

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /E1CHO/cve_hub/blob/main/Grade%20Point%20Average%20(GPA)%20Calculator%20in%20PHP%20and%20SQLite3/Grade%20Point
exploit, third-party-advisory
vuldb.com /?id.224672
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.224672
signature, permissions-required, third-party-advisory

Sources

CVE List CVE-2023-1771
NVD CVE-2023-1771

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