Vulnerability Details : CVE-2020-8498
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).
Vulnerability category: Cross site scripting (XSS)
Exploit prediction scoring system (EPSS) score for CVE-2020-8498
Probability of exploitation activity in the next 30 days: 0.07%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 27 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-8498
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST |
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2020-8498
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The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-8498
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https://github.com/bradyvercher/gistpress/commit/e3f260edb6673227b0471c74b7ab13c094411ef7
Sanitize the shortcode id attribute. · bradyvercher/gistpress@e3f260e · GitHubPatch
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https://wpvulndb.com/vulnerabilities/10053
GistPress < 3.0.2 - Authenticated Stored XSSPatch;Third Party Advisory
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https://github.com/bradyvercher/gistpress/releases/tag/v3.0.2
Release 3.0.2 · bradyvercher/gistpress · GitHubRelease Notes
Products affected by CVE-2020-8498
- cpe:2.3:a:gistpress_project:gistpress:*:*:*:*:*:wordpress:*:*