CVE-2023-0491 | BDVDB-2026-198340 Detail

Schedulicity

Description#

The Schedulicity WordPress plugin through 2.21 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact none. Attack vector: network.

Weaknesses#

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References#

https://wpscan.com/vulnerability/b1a7e8fc-ffcf-493b-9f2d-ffa5d2348b60

Exploit#

https://wpscan.com/vulnerability/b1a7e8fc-ffcf-493b-9f2d-ffa5d2348b60

History#

Version 12023-03-27Record published in the CVE List.
Version 22025-02-19Most recent update recorded in the CVE List.

Published

Published: 2023-03-27
Last modified: 2025-02-19

Vendor information

Vendor: Not stated
Product: Schedulicity

Score

6.5 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 46.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Cross-Site Scripting

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 2.21
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

6.5 Medium

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity	High
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).