CVE-2018-20779: Traq 3.7.1 allows SQL Injection via a tickets?search= URI.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-20779 is a critical-severity flaw (CVSS 9.8) affecting traq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Traq 3.7.1 allows SQL Injection via a tickets?search= URI.

Why this priority

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

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 20%)
CISA exploited list	No
Weakness	CWE-89
Published	2019-02-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: traq

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

Am I affected?

Timeline

2019-02-11 02:29 UTCPublished CVE record published
2026-06-17 01:53 UTCUpdated Record last modified

traq traq DOWNGRADE

Affected: 3.7.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.7.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.7.1 (Debian / Ubuntu)

apt-cache madison traq sudo apt install traq=<VERSION_BEFORE_3.7.1> sudo apt-mark hold traq

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list traq sudo dnf downgrade traq-<VERSION_BEFORE_3.7.1> sudo dnf versionlock add traq

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2018-20779?

traq: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-20779 being exploited?

CVE-2018-20779 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-2018-20779 affect?

CVE-2018-20779 affects traq. Severity is critical (CVSS 9.8). Traq 3.7.1 allows SQL Injection via a tickets?search= URI.

How urgent is CVE-2018-20779?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2018-20780 HIGH 8.8 DOWNGRADE Traq 3.7.1 allows admin/users/new CSRF to create an admin account (aka group_id=1).

References

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