CVE-2024-56376: A stored cross-site scripting (XSS) vulnerability in the built-in messenger of REDCap 14.9.6 allows authentica

Routine

MEDIUM 5.4DOWNGRADE

CVE-2024-56376 is a medium-severity flaw (CVSS 5.4) affecting redcap. 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 built-in messenger of REDCap 14.9.6 allows authenticated users to inject malicious scripts into the message field. When a user click on the received message, the crafted payload is executed, potentially enabling the execution of arbitrary web scripts.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-01-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: vanderbilt

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

Am I affected?

Timeline

2025-01-09 23:15 UTCPublished CVE record published
2026-06-17 08:12 UTCUpdated Record last modified

vanderbilt redcap DOWNGRADE

Affected: 14.9.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 14.9.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 14.9.6 (Debian / Ubuntu)

apt-cache madison redcap sudo apt install redcap=<VERSION_BEFORE_14.9.6> sudo apt-mark hold redcap

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

dnf --showduplicates list redcap sudo dnf downgrade redcap-<VERSION_BEFORE_14.9.6> sudo dnf versionlock add redcap

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-2024-56376?

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

Is CVE-2024-56376 being exploited?

CVE-2024-56376 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-2024-56376 affect?

CVE-2024-56376 affects redcap. Severity is medium (CVSS 5.4). A stored cross-site scripting (XSS) vulnerability in the built-in messenger of REDCap 14.9.6 allows authenticated users to inject malicious scripts into the message field. When a user click on the received message, the crafted payload is ex

How urgent is CVE-2024-56376?

Priority 33/100. Public exploit reference

Related CVEs

CVE-2024-55374 MEDIUM 5.3 DOWNGRADE REDCap 14.3.13 allows an attacker to enumerate usernames due to an observable discrepancy between login attemp
CVE-2025-23113 LOW 3.4 DOWNGRADE An issue was discovered in REDCap 14.9.6
CVE-2025-23112 MEDIUM 6.1 DOWNGRADE An issue was discovered in REDCap 14.9.6
CVE-2025-23111 MEDIUM 4.7 DOWNGRADE An issue was discovered in REDCap 14.9.6
CVE-2025-23110 MEDIUM 6.1 DOWNGRADE An issue was discovered in REDCap 14.9.6

References

← Back to latest CVEs