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CVE-2021-24225

19
FAUCET Score

CVE-2021-24225 describes a reflected Cross-Site Scripting (XSS) vulnerability in the Advanced Booking Calendar WordPress plugin prior to version 1.6.7. This medium-severity flaw (CVSS 5.4) allows an authenticated attacker to inject malicious scripts into a user's browser by manipulating the 'calId' GET parameter on the "Seasons & Calendars" page, potentially leading to information disclosure or limited impact on integrity. There is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.7CPE matchmatch criteria
cpe:2.3:a:elbtide:advanced_booking_calendar:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.69%
Probability of exploitation in next 30 days
EPSS Percentile
49.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0069 is in the 83rd percentile among its peer group of 15,225 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / changeset/2503971
PatchThird Party Advisory
wpscan.com / vulnerability/25ca8af5-ab48-4e6d-b2ef-fc291742f1d5
ExploitThird Party Advisory