CVE-2010-2048: Multiple cross-site scripting (XSS) vulnerabilities in the Heartbeat module 6.x before 6.x-4.9 for Drupal allo

Routine

LOW 3.5DOWNGRADE

CVE-2010-2048 is a low-severity flaw (CVSS 3.5) affecting heartbeat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in the Heartbeat module 6.x before 6.x-4.9 for Drupal allow remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	3.5 (Low)
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-79
Published	2010-05-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: menhir

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2010-05-25 18:30 UTCPublished CVE record published
2026-06-16 23:19 UTCUpdated Record last modified

menhir heartbeat DOWNGRADE

Affected: 6.x-2.3 · 6.x-2.3 beta1 · 6.x-2.3 beta2 · 6.x-3.2 · 6.x-3.3 · 6.x-3.x dev · 6.x-4.0 · 6.x-4.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.x-2.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 6.x-2.3 (Debian / Ubuntu)

apt-cache madison heartbeat sudo apt install heartbeat=<VERSION_BEFORE_6.x-2.3> sudo apt-mark hold heartbeat

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

dnf --showduplicates list heartbeat sudo dnf downgrade heartbeat-<VERSION_BEFORE_6.x-2.3> sudo dnf versionlock add heartbeat

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-2010-2048?

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

Is CVE-2010-2048 being exploited?

CVE-2010-2048 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-2010-2048 affect?

CVE-2010-2048 affects heartbeat. Severity is low (CVSS 3.5). Multiple cross-site scripting (XSS) vulnerabilities in the Heartbeat module 6.x before 6.x-4.9 for Drupal allow remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

How urgent is CVE-2010-2048?

Priority 27/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

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References

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