CVE-2020-8498

Name: CVE-2020-8498
Creator: NVD / NIST
Published: 2020-01-30T23:15:10.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 1.21%

Last modified Jun 17, 2026

CVE-2020-8498 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. XSS exists in the shortcode functionality of the GistPress plugin before 3.0.2 for WordPress via the includes/class-gistpress.php id parameter. This allows an attacker with the WordPress Contributor role to execute arbitrary JavaScript code with the privileges of other users (e.g., ones who have the publish_posts capability).. EPSS estimates a 1.21% chance of exploitation in the next 30 days.

Description

XSS exists in the shortcode functionality of the GistPress plugin before 3.0.2 for WordPress via the includes/class-gistpress.php id parameter. This allows an attacker with the WordPress Contributor role to execute arbitrary JavaScript code with the privileges of other users (e.g., ones who have the publish_posts capability).

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.21%

64.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gistpress Project	Gistpress	< 3.0.2

References

https://github.com/bradyvercher/gistpress/commit/e3f260edb6673227b0471c74b7ab13c094411ef7Patch
https://github.com/bradyvercher/gistpress/releases/tag/v3.0.2Release Notes
https://wpvulndb.com/vulnerabilities/10053Patch, Third Party Advisory
https://github.com/bradyvercher/gistpress/commit/e3f260edb6673227b0471c74b7ab13c094411ef7Patch
https://github.com/bradyvercher/gistpress/releases/tag/v3.0.2Release Notes
https://wpvulndb.com/vulnerabilities/10053Patch, Third Party Advisory

Timeline

Published: Jan 30, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8498?

How severe is CVE-2020-8498?

CVE-2020-8498 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8498?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8498?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST