CVE-2024-48933: A cross-site scripting (XSS) vulnerability in LemonLDAP::NG before 2.19.3 allows remote attackers to inject ar

Q: How do I fix CVE-2024-48933?

lemonldap\: upgrade to 2.19.3. Exact commands for each OS are on this page.

Q: Is CVE-2024-48933 being exploited?

CVE-2024-48933 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-48933 affect?

CVE-2024-48933 affects lemonldap\. Severity is medium (CVSS 6.1). A cross-site scripting (XSS) vulnerability in LemonLDAP::NG before 2.19.3 allows remote attackers to inject arbitrary web script or HTML into the login page via a username if userControl has been set to a non-default value that allows speci

Q: How urgent is CVE-2024-48933?

Priority 28/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2024-48933 is a medium-severity flaw (CVSS 6.1) affecting lemonldap\. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A cross-site scripting (XSS) vulnerability in LemonLDAP::NG before 2.19.3 allows remote attackers to inject arbitrary web script or HTML into the login page via a username if userControl has been set to a non-default value that allows special HTML characters.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-10-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: lemonldap-ng

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-10-09 23:15 UTCPublished CVE record published
2026-06-17 07:59 UTCUpdated Record last modified

lemonldap-ng lemonldap\ UPGRADE

Affected: < 2.19.3

Fixed in: 2.19.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy lemonldap || rpm -q lemonldap || lemonldap --version

2. UPGRADE to 2.19.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade lemonldap

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lemonldap

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-48933?

lemonldap\: upgrade to 2.19.3. Exact commands for each OS are on this page.

Is CVE-2024-48933 being exploited?

CVE-2024-48933 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-48933 affect?

CVE-2024-48933 affects lemonldap\. Severity is medium (CVSS 6.1). A cross-site scripting (XSS) vulnerability in LemonLDAP::NG before 2.19.3 allows remote attackers to inject arbitrary web script or HTML into the login page via a username if userControl has been set to a non-default value that allows speci

How urgent is CVE-2024-48933?

Priority 28/100. No elevated risk signals yet.

Related CVEs

CVE-2023-44469 MEDIUM 4.3 UPGRADE A Server-Side Request Forgery issue in the OpenID Connect Issuer in LemonLDAP::NG before 2.17.1 allows authent
CVE-2019-19791 CRITICAL 9.8 UPGRADE In LemonLDAP::NG (aka lemonldap-ng) before 2.0.7, the default Apache HTTP Server configuration does not proper

References

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