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Pagekit CMS cross-site scripting in Markdown text box where articles are edited

Moderate severity GitHub Reviewed Published Aug 29, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

composer pagekit/pagekit (Composer)

Affected versions

<= 1.0.18

Patched versions

None

Description

A cross-site scripting (XSS) vulnerability in Pagekit CMS v1.0.18 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Markdown text box under /blog/post/edit.

References

Published by the National Vulnerability Database Aug 29, 2022
Published to the GitHub Advisory Database Aug 29, 2022
Reviewed Sep 16, 2022
Last updated Jan 27, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.078%
(35th percentile)

Weaknesses

CVE ID

CVE-2022-36573

GHSA ID

GHSA-q6h8-qjjc-j8cg

Source code

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