CVE-2011-0286: Cross-site scripting (XSS) vulnerability in webdesktop/app in the BlackBerry Web Desktop Manager component in

This month

MEDIUM 4.3DOWNGRADEDOWNGRADE

CVE-2011-0286 is a medium-severity flaw (CVSS 4.3) affecting blackberry enterprise server, blackberry enterprise server express. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in webdesktop/app in the BlackBerry Web Desktop Manager component in Research In Motion (RIM) BlackBerry Enterprise Server (BES) software before 5.0.2 MR5 and 5.0.3 before MR1, and BlackBerry Enterprise Server Express software 5.0.1 and 5.0.2, allows remote attackers to inject arbitrary web script or HTML via the displayErrorMessage parameter in a ManageDevices action.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-79
Published	2011-04-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: rim

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

Am I affected?

Timeline

2011-04-18 18:55 UTCPublished CVE record published
2026-06-16 23:27 UTCUpdated Record last modified

rim blackberry enterprise server DOWNGRADE

Affected: 5.0.0 · 5.0.1 · 5.0.2 · 5.0.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.0

1. Check installed version

apt-cache policy blackberry-enterprise-server || rpm -q blackberry-enterprise-server || blackberry-enterprise-server --version

2. No fixed release: DOWNGRADE to a release before 5.0.0 (Debian / Ubuntu)

apt-cache madison blackberry-enterprise-server sudo apt install blackberry-enterprise-server=<VERSION_BEFORE_5.0.0> sudo apt-mark hold blackberry-enterprise-server

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

dnf --showduplicates list blackberry-enterprise-server sudo dnf downgrade blackberry-enterprise-server-<VERSION_BEFORE_5.0.0> sudo dnf versionlock add blackberry-enterprise-server

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.

rim blackberry enterprise server express DOWNGRADE

Affected: 5.0.1 · 5.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.1

1. Check installed version

apt-cache policy blackberry-enterprise-server-express || rpm -q blackberry-enterprise-server-express || blackberry-enterprise-server-express --version

2. No fixed release: DOWNGRADE to a release before 5.0.1 (Debian / Ubuntu)

apt-cache madison blackberry-enterprise-server-express sudo apt install blackberry-enterprise-server-express=<VERSION_BEFORE_5.0.1> sudo apt-mark hold blackberry-enterprise-server-express

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

dnf --showduplicates list blackberry-enterprise-server-express sudo dnf downgrade blackberry-enterprise-server-express-<VERSION_BEFORE_5.0.1> sudo dnf versionlock add blackberry-enterprise-server-express

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-2011-0286?

blackberry enterprise server: downgrade or apply the listed mitigation; blackberry enterprise server express: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-0286 being exploited?

CVE-2011-0286 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-2011-0286 affect?

CVE-2011-0286 affects blackberry enterprise server, blackberry enterprise server express. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in webdesktop/app in the BlackBerry Web Desktop Manager component in Research In Motion (RIM) BlackBerry Enterprise Server (BES) software before 5.0.2 MR5 and 5.0.3 before MR1, and BlackBerry Enterpr

How urgent is CVE-2011-0286?

Priority 40/100. Public exploit reference

Related CVEs

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CVE-2011-0287 MEDIUM 6.4 DOWNGRADE DOWNGRADE Unspecified vulnerability in the BlackBerry Administration API in Research In Motion (RIM) BlackBerry Enterpri
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References

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