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CVE-2021-34655

20
FAUCET Score

CVE-2021-34655 describes a Reflected Cross-Site Scripting (XSS) vulnerability in the WP Songbook WordPress plugin, affecting versions up to and including 2.0.11. This flaw allows attackers to inject arbitrary web scripts through the 'url' parameter in the ~/inc/class.ajax.php file. Rated with a CVSS score of 6.1 (Medium), it requires user interaction (UI:R) but can be exploited remotely (AV:N) with low attack complexity (AC:L), potentially leading to information disclosure and integrity compromise (C:L/I:L). There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage, indicating low current threat visibility.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.11CPE matchmatch criteria
cpe:2.3:a:wp_songbook_project:wp_songbook:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.84%
Probability of exploitation in next 30 days
EPSS Percentile
54.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0084 is in the 64th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 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 / browser/wp-songbook/tags/2.0.11/inc/class.ajax.php
ExploitThird Party Advisory
wordfence.com / vulnerability-advisories
ExploitThird Party Advisory