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CVE-2019-16645

41
FAUCET Score

CVE-2019-16645 is a host header injection vulnerability affecting Embedthis GoAhead 2.5.0, where certain web pages generate links using an attacker-controlled HTTP Host header. This flaw has a high CVSS score of 8.6, indicating a critical risk due to its network-based attack vector, low complexity, and high impact on integrity, primarily enabling phishing attacks. While not actively exploited in the wild or on the CISA KEV catalog, public exploit code exists on ExploitDB, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.5.0CPE matchmatch criteria
cpe:2.3:a:embedthis:goahead:2.5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.18%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-47439 · Sep 30, 2019
This CVE's current EPSS score of 0.0818 is in the 91st percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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/154652/GoAhead-2.5.0-Host-Header-Injection.html
github.com / Ramikan/Vulnerabilities/blob/master/GoAhead%20Web%20server%20HTTP%20Header%20Injection
ExploitThird Party Advisory