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CVE-2018-8715

49
FAUCET Score

CVE-2018-8715 describes a logic flaw in the Embedthis HTTP library and Appweb versions prior to 7.0.3, specifically within the authCondition function. This flaw allows an unauthenticated attacker to bypass authentication for form and digest login types using a specially crafted HTTP request. Rated 8.1 HIGH on CVSS, this vulnerability has a high impact on confidentiality, integrity, and availability, with a network attack vector and high attack complexity. While not listed in CISA's KEV catalog, a Nuclei template for an authentication bypass exists, indicating potential exploitability, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.0.2CPE matchmatch criteria
cpe:2.3:a:embedthis:appweb:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
23.29%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Nuclei: CVE-2018-8715 · Jun 30, 2021
This CVE's current EPSS score of 0.2329 is in the 89th percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

blogs.securiteam.com / index.php/archives/3676
ExploitThird Party Advisory
github.com / embedthis/appweb/issues/610
PatchThird Party Advisory
security.paloaltonetworks.com / CVE-2018-8715