CVE-2024-50849: A Stored Cross-Site Scripting (XSS) vulnerability in the "Rules" functionality of WorldServer v11.8.2 allows a

Routine

MEDIUM 4.8DOWNGRADE

CVE-2024-50849 is a medium-severity flaw (CVSS 4.8) affecting worldserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Stored Cross-Site Scripting (XSS) vulnerability in the "Rules" functionality of WorldServer v11.8.2 allows a remote authenticated attacker to execute arbitrary JavaScript code.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-11-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rws

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

Am I affected?

Timeline

2024-11-18 21:15 UTCPublished CVE record published
2026-06-17 08:05 UTCUpdated Record last modified

rws worldserver DOWNGRADE

Affected: 11.8.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.8.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 11.8.2 (Debian / Ubuntu)

apt-cache madison worldserver sudo apt install worldserver=<VERSION_BEFORE_11.8.2> sudo apt-mark hold worldserver

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

dnf --showduplicates list worldserver sudo dnf downgrade worldserver-<VERSION_BEFORE_11.8.2> sudo dnf versionlock add worldserver

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-2024-50849?

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

Is CVE-2024-50849 being exploited?

CVE-2024-50849 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-2024-50849 affect?

CVE-2024-50849 affects worldserver. Severity is medium (CVSS 4.8). A Stored Cross-Site Scripting (XSS) vulnerability in the "Rules" functionality of WorldServer v11.8.2 allows a remote authenticated attacker to execute arbitrary JavaScript code.

How urgent is CVE-2024-50849?

Priority 28/100. No elevated risk signals yet.

Related CVEs

CVE-2024-50848 MEDIUM 6.5 DOWNGRADE An XML External Entity (XXE) vulnerability in the Import object and Translation Memory import functionalities

References

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