CVE-2022-27920: libkiwix 10.0.0 and 10.0.1 allows XSS in the built-in webserver functionality via the search suggestions URL p

Routine

MEDIUM 6.1DOWNGRADEMITIGATE

CVE-2022-27920 is a medium-severity flaw (CVSS 6.1) affecting libkiwix, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

libkiwix 10.0.0 and 10.0.1 allows XSS in the built-in webserver functionality via the search suggestions URL parameter. This is fixed in 10.1.0.

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	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-03-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fedoraproject · kiwix

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

Am I affected?

Timeline

2022-03-25 20:15 UTCPublished CVE record published
2026-06-17 04:37 UTCUpdated Record last modified

kiwix libkiwix DOWNGRADE

Affected: 10.0.0 · 10.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 10.0.0 (Debian / Ubuntu)

apt-cache madison libkiwix sudo apt install libkiwix=<VERSION_BEFORE_10.0.0> sudo apt-mark hold libkiwix

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

dnf --showduplicates list libkiwix sudo dnf downgrade libkiwix-<VERSION_BEFORE_10.0.0> sudo dnf versionlock add libkiwix

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.

fedoraproject fedora MITIGATE

Affected: 35

Fixed in: no fixed release known

Safe to downgrade to: a release before 35

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2022-27920?

libkiwix: downgrade or apply the listed mitigation; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-27920 being exploited?

CVE-2022-27920 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-2022-27920 affect?

CVE-2022-27920 affects libkiwix, fedora. Severity is medium (CVSS 6.1). libkiwix 10.0.0 and 10.0.1 allows XSS in the built-in webserver functionality via the search suggestions URL parameter. This is fixed in 10.1.0.

How urgent is CVE-2022-27920?

Priority 36/100. No elevated risk signals yet.

References

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