CVE-2022-45543: Cross site scripting (XSS) vulnerability in DiscuzX 3.4 allows attackers to execute arbitrary code via the dat

Routine

MEDIUM 6.1DOWNGRADE

CVE-2022-45543 is a medium-severity flaw (CVSS 6.1) affecting discuzx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross site scripting (XSS) vulnerability in DiscuzX 3.4 allows attackers to execute arbitrary code via the datetline, title, tpp, or username parameters via the audit search.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-02-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: discuz

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

Am I affected?

Timeline

2023-02-15 21:15 UTCPublished CVE record published
2026-06-17 05:10 UTCUpdated Record last modified

discuz discuzx DOWNGRADE

Affected: 3.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.4 (Debian / Ubuntu)

apt-cache madison discuzx sudo apt install discuzx=<VERSION_BEFORE_3.4> sudo apt-mark hold discuzx

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

dnf --showduplicates list discuzx sudo dnf downgrade discuzx-<VERSION_BEFORE_3.4> sudo dnf versionlock add discuzx

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-2022-45543?

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

Is CVE-2022-45543 being exploited?

CVE-2022-45543 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-2022-45543 affect?

CVE-2022-45543 affects discuzx. Severity is medium (CVSS 6.1). Cross site scripting (XSS) vulnerability in DiscuzX 3.4 allows attackers to execute arbitrary code via the datetline, title, tpp, or username parameters via the audit search.

How urgent is CVE-2022-45543?

Priority 33/100. No elevated risk signals yet.

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CVE-2018-5376 MEDIUM 6.1 DOWNGRADE Discuz! DiscuzX X3.4 has XSS via the include\spacecp\spacecp_upload.php op parameter.
CVE-2018-5375 MEDIUM 6.1 DOWNGRADE Discuz! DiscuzX X3.4 has XSS via the include\spacecp\spacecp_space.php appid parameter in a delete action.
CVE-2018-5331 MEDIUM 5.4 DOWNGRADE Discuz! DiscuzX X3.4 has XSS via the view parameter to include/space/space_poll.php, as demonstrated by a mod=

References

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