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CVE-2019-13423

26
FAUCET Score

CVE-2019-13423 is a high-severity authentication bypass vulnerability affecting Search Guard Kibana Plugin versions before 5.6.8-7 and 6.x.y-12. An authenticated Kibana user could impersonate the kibanaserver user by providing incorrect credentials under specific SSO and HTTP Basic authentication configurations. With a CVSS score of 8.8 (HIGH), this vulnerability has a low attack complexity and allows for high impact on confidentiality, integrity, and availability. The attack vector is over the network, requiring only low privileges. There is no evidence of active exploitation, nor are there known public exploits or Metasploit modules. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.6.8-7CPE matchmatch criteria
cpe:2.3:a:search-guard:search_guard:*:*:*:*:*:kibana:*:*
>= 6.1.0-8, < 6.2.3-12CPE matchmatch criteria
cpe:2.3:a:search-guard:search_guard:*:*:*:*:*:kibana:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 40th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 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

Vendor Advisories (1)

redhatCVE-2019-13423Moderate

search-guard-kibana-plugin: Authenticated user could impersonate server user when providing wrong credentials

Aug 23, 2019

References

docs.search-guard.com / 6.x-25/changelog-kibana-6.x-12
Vendor Advisory
search-guard.com / cve-advisory
Vendor Advisory