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CVE-2019-13031

27
FAUCET Score

CVE-2019-13031 describes an XML External Entity (XXE) vulnerability in LemonLDAP::NG versions prior to 1.9.20, specifically affecting its notification server functionality. This high-severity vulnerability (CVSS 8.1) allows unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability with high attack complexity, though it requires the notification server to be enabled and its default "deny all" rule to be bypassed. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.9.20CPE matchmatch criteria
cpe:2.3:a:lemonldap-ng:lemonldap\:\::*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

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
1.93%
Probability of exploitation in next 30 days
EPSS Percentile
77.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0193 is in the 35th percentile among its peer group of 8,914 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

Remediation records are not available for this CVE.

References

gitlab.ow2.org / lemonldap-ng/lemonldap-ng/issues/1820
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2019/07/msg00003.html
Third Party Advisory
calypt.com / blog/index.php/cve-2019-13031-xxe-on-lemonldapng-2-0-5