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CVE-2019-16525

33
FAUCET Score

CVE-2019-16525 describes a Cross-Site Scripting (XSS) vulnerability in the WordPress checklist plugin prior to version 1.1.9, stemming from improper filtering of the 'fill' parameter in checklist-icon.php. Rated as Medium severity (CVSS 6.1), this vulnerability could allow an unauthenticated attacker to inject JavaScript code via a network-based attack, requiring user interaction, potentially leading to low impact on confidentiality and integrity. While no active exploitation or public exploit code (Metasploit, ExploitDB) is reported, Nuclei templates exist, and there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.9CPE matchmatch criteria
cpe:2.3:a:checklist:checklist:*:*:*:*:*: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
5.55%
Probability of exploitation in next 30 days
EPSS Percentile
92.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Nuclei: CVE-2019-16525 · Jul 11, 2021
This CVE's current EPSS score of 0.0555 is in the 96th percentile among its peer group of 26,219 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

packetstormsecurity.com / files/154436/WordPress-Checklist-1.1.5-Cross-Site-Scripting.html
ExploitThird Party AdvisoryVDB Entry
plugins.trac.wordpress.org / changeset/2155029
PatchThird Party Advisory
wordpress.org / plugins/checklist
ProductRelease Notes
wpvulndb.com / vulnerabilities/9877
Third Party Advisory