HOMEVULNERABILITIESCVE-2019-13031
HIGH

CVE-2019-13031

CWE-611Published: June 28, 2019· Updated: Jun 17, 2026

8.1
CVSS v3.1

Official Description

LemonLDAP::NG before 1.9.20 has an XML External Entity (XXE) issue when submitting a notification to the notification server. By default, the notification server is not enabled and has a "deny all" rule.

NVD Source

Technical Analysis

CVE-2019-13031 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
lemonldap-ng1 product(s)
lemonldap\
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1820
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/07/msg00003.html
ADVISORYhttps://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1820
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/07/msg00003.html

All References (6)

→
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1820Issue Tracking · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/07/msg00003.htmlThird Party Advisory
→
https://www.calypt.com/blog/index.php/cve-2019-13031-xxe-on-lemonldapng-2-0-5/
→
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1820Issue Tracking · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/07/msg00003.htmlThird Party Advisory
→
https://www.calypt.com/blog/index.php/cve-2019-13031-xxe-on-lemonldapng-2-0-5/

Quick Facts

CVE IDCVE-2019-13031
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-611
CISA KEVNo
Affected2 vendor(s)
PublishedJun 28, 2019

Related CVEs (CWE-611)

CVE-2017-7664
10.0
CVE-2023-38490
10.0
CVE-2018-1000820
10.0
CVE-2018-1000652
10.0
CVE-2018-1000644
10.0
CVE-2018-1000124
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-13031 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2019-13031·NVD