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CVE-2018-16159

71
FAUCET Score

CVE-2018-16159 is a critical SQL Injection vulnerability affecting the Gift Vouchers plugin for WordPress, versions through 2.0.1. This flaw allows unauthenticated attackers to execute arbitrary SQL queries via the template_id parameter in admin-ajax.php, leading to complete compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, exploit intelligence indicates the existence of Nuclei templates for blind SQL injection, and it has garnered significant community discussion with 10 mentions. Given its critical CVSS score of 9.8 and high EPSS, organizations using the affected plugin should prioritize patching.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.1CPE matchmatch criteria
cpe:2.3:a:codemenschen:gift_vouchers:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
49.92%
Probability of exploitation in next 30 days
EPSS Percentile
98.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Nuclei: CVE-2018-16159 · Mar 5, 2023
This CVE's current EPSS score of 0.4992 is in the 96th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wpvulndb.com / vulnerabilities/9117
Third Party Advisory
exploit-db.com / exploits/45255
ExploitThird Party AdvisoryVDB Entry