CVE-2020-35244: Flamingo (aka FlamingoIM) through 2020-09-29 has a SQL injection vulnerability in UserManager::addGroup.

Q: How do I fix CVE-2020-35244?

flamingo: upgrade to newer than 2020-09-29. Exact commands for each OS are on this page.

Q: Is CVE-2020-35244 being exploited?

CVE-2020-35244 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-2020-35244 affect?

CVE-2020-35244 affects flamingo. Severity is critical (CVSS 9.8). Flamingo (aka FlamingoIM) through 2020-09-29 has a SQL injection vulnerability in UserManager::addGroup.

Q: How urgent is CVE-2020-35244?

Priority 61/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2020-35244 is a critical-severity flaw (CVSS 9.8) affecting flamingo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Flamingo (aka FlamingoIM) through 2020-09-29 has a SQL injection vulnerability in UserManager::addGroup.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-89
Published	2020-12-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: flamingo project

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

Am I affected?

Timeline

2020-12-26 20:15 UTCPublished CVE record published
2026-06-17 03:13 UTCUpdated Record last modified

flamingo project flamingo UPGRADE

Affected: <= 2020-09-29

Fixed in: newer than 2020-09-29

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2020-09-29 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flamingo

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-2020-35244?

flamingo: upgrade to newer than 2020-09-29. Exact commands for each OS are on this page.

Is CVE-2020-35244 being exploited?

CVE-2020-35244 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-2020-35244 affect?

CVE-2020-35244 affects flamingo. Severity is critical (CVSS 9.8). Flamingo (aka FlamingoIM) through 2020-09-29 has a SQL injection vulnerability in UserManager::addGroup.

How urgent is CVE-2020-35244?

Priority 61/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-61498 CRITICAL 9.8 UPGRADE Vitec Flamingo 4.12.2 contains an unauthenticated OS command injection vulnerability in the admin/ajax/gen_gra
CVE-2026-60121 CRITICAL 9.8 UPGRADE Vitec Flamingo 4.12.2 contains an unauthenticated OS command injection vulnerability in the admin/ajax/ping.ph
CVE-2020-35245 CRITICAL 9.8 UPGRADE Flamingo (aka FlamingoIM) through 2020-09-29 has a SQL injection vulnerability in UserManager::addUser.
CVE-2020-35243 CRITICAL 9.8 UPGRADE Flamingo (aka FlamingoIM) through 2020-09-29 has a SQL injection vulnerability in UserManager::updateUserInfoI
CVE-2020-35242 CRITICAL 9.8 UPGRADE Flamingo (aka FlamingoIM) through 2020-09-29 has a SQL injection vulnerability in UserManager::updateUserTeamI

References

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