What is CVE-2021-26304?

CVE-2021-26304 is a medium-severity vulnerability in Phpgurukul Daily Expense Tracker System, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-01-29.

How severe is CVE-2021-26304?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Phpgurukul Daily Expense Tracker System

CVE-2021-26304

PHPGurukul Daily Expense Tracker System 1.0 is vulnerable to stored XSS via the add-expense.php Item parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-01-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Phpgurukul Daily Expense Tracker System — versions 1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

packetstormsecurity.com/files/161114/Daily-Expense-Tracker-System-1.0-Cross-Sit… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-26304?: CVE-2021-26304 is a medium-severity vulnerability in Phpgurukul Daily Expense Tracker System, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-01-29.
How severe is CVE-2021-26304?: Medium severity. CVSS v3 base score is 5.4 out of 10.