CVE-2015-7943: Open redirect vulnerability in the Overlay module in Drupal 7.x before 7.41, the jQuery Update module 7.x-2.x

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MEDIUM 6.1DOWNGRADEDOWNGRADEDOWNGRADE

CVE-2015-7943 is a medium-severity flaw (CVSS 6.1) affecting drupal, jquery update, labjs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Open redirect vulnerability in the Overlay module in Drupal 7.x before 7.41, the jQuery Update module 7.x-2.x before 7.x-2.7 for Drupal, and the LABjs module 7.x-1.x before 7.x-1.8 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-3233.

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	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-601
Published	2017-10-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: drupal · jquery update project · labjs project

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

Am I affected?

Timeline

2017-10-18 18:29 UTCPublished CVE record published
2026-06-17 00:33 UTCUpdated Record last modified

drupal drupal DOWNGRADE

Affected: 7.0 · 7.0 alpha1 · 7.0 alpha2 · 7.0 alpha3 · 7.0 alpha4 · 7.0 alpha5 · 7.0 alpha6 · 7.0 alpha7

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.0 (Debian / Ubuntu)

apt-cache madison drupal sudo apt install drupal=<VERSION_BEFORE_7.0> sudo apt-mark hold drupal

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

dnf --showduplicates list drupal sudo dnf downgrade drupal-<VERSION_BEFORE_7.0> sudo dnf versionlock add drupal

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.

jquery update project jquery update DOWNGRADE

Affected: 7.x-2.0 · 7.x-2.1 · 7.x-2.2 · 7.x-2.3 · 7.x-2.4 · 7.x-2.5 · 7.x-2.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.x-2.0

1. Check installed version

apt-cache policy jquery-update || rpm -q jquery-update || jquery-update --version

2. No fixed release: DOWNGRADE to a release before 7.x-2.0 (Debian / Ubuntu)

apt-cache madison jquery-update sudo apt install jquery-update=<VERSION_BEFORE_7.x-2.0> sudo apt-mark hold jquery-update

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

dnf --showduplicates list jquery-update sudo dnf downgrade jquery-update-<VERSION_BEFORE_7.x-2.0> sudo dnf versionlock add jquery-update

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.

labjs project labjs DOWNGRADE

Affected: 7.x-1.0 · 7.x-1.0 beta1 · 7.x-1.0 rc1 · 7.x-1.1 · 7.x-1.2 · 7.x-1.3 · 7.x-1.4 · 7.x-1.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.x-1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.x-1.0 (Debian / Ubuntu)

apt-cache madison labjs sudo apt install labjs=<VERSION_BEFORE_7.x-1.0> sudo apt-mark hold labjs

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

dnf --showduplicates list labjs sudo dnf downgrade labjs-<VERSION_BEFORE_7.x-1.0> sudo dnf versionlock add labjs

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-2015-7943?

drupal: downgrade or apply the listed mitigation; jquery update: downgrade or apply the listed mitigation; labjs: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-7943 being exploited?

CVE-2015-7943 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-2015-7943 affect?

CVE-2015-7943 affects drupal, jquery update, labjs. Severity is medium (CVSS 6.1). Open redirect vulnerability in the Overlay module in Drupal 7.x before 7.41, the jQuery Update module 7.x-2.x before 7.x-2.7 for Drupal, and the LABjs module 7.x-1.x before 7.x-1.8 allows remote attackers to redirect users to arbitrary web

How urgent is CVE-2015-7943?

Priority 41/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities · jQuery vulnerabilities

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References

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