What is CVE-2018-19340?

CVE-2018-19340 is a medium-severity vulnerability in Guriddo Form PHP, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-11-17.

How severe is CVE-2018-19340?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-19340 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Guriddo Form PHP

CVE-2018-19340

Guriddo Form PHP 5.3 has XSS via the demos/jqform/defaultnodb/default.php OrderID, ShipName, ShipAddress, ShipCity, ShipPostalCode, ShipCountry, Freight, or details parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-11-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.7th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Guriddo Form PHP — versions 5.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/0xUhaw/CVE-Bins/tree/master/Guriddo Form PHP (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-19340?: CVE-2018-19340 is a medium-severity vulnerability in Guriddo Form PHP, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-11-17.
How severe is CVE-2018-19340?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-19340 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.