CVE-2021-39345

Description

The HAL WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/wp-hal.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.1.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

Related CPE's

acnrshal*****wordpress**

References

https://github.com/BigTiger2020/word-press/blob/main/HAL.md

ExploitThird Party Advisory

https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39345

Third Party Advisory

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2614075%40hal&new=2614075%40hal&sfp_email=&sfph_mail=

PatchThird Party Advisory

CvssV3 impact

Version

3.1

VectorString

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

AttackVector

NETWORK

AttackComplexity

LOW

PrivilegesRequired

HIGH

UserInteraction

REQUIRED

Scope

CHANGED

ConfidentialityImpact

LOW

IntegrityImpact

LOW

AvailabilityImpact

NONE

BaseScore

4.8

BaseSeverity

MEDIUM

CvssV2 impact

AccessComplexity

HIGH

ConfidentialityImpact

NONE

AvailabilityImpact

NONE

IntegrityImpact

PARTIAL

BaseScore

2.1

VectorString

AV:N/AC:H/Au:S/C:N/I:P/A:N

Version

2.0

AccessVector

NETWORK

Authentication

SINGLE

Created by Yello
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