CVE-2011-2088: XWork 2.2.1 in Apache Struts 2.2.1, and OpenSymphony XWork in OpenSymphony WebWork, allows remote attackers to

This month

MEDIUM 5.0WATCHLISTDOWNGRADEDOWNGRADEMITIGATE

CVE-2011-2088 is a medium-severity flaw (CVSS 5.0) affecting struts, xwork, webwork. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

XWork 2.2.1 in Apache Struts 2.2.1, and OpenSymphony XWork in OpenSymphony WebWork, allows remote attackers to obtain potentially sensitive information about internal Java class paths via vectors involving an s:submit element and a nonexistent method, a different vulnerability than CVE-2011-1772.3.

Why this priority

EPSS top 7%: very likely to be exploited
On your watchlist

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	6.1% (top 7%)
CISA exploited list	No
Weakness	CWE-200
Published	2011-05-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: apache · opensymphony

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

Am I affected?

Timeline

2011-05-13 17:05 UTCPublished CVE record published
2026-06-16 23:30 UTCUpdated Record last modified

apache struts DOWNGRADE

Affected: 2.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.2.1 (Debian / Ubuntu)

apt-cache madison struts sudo apt install struts=<VERSION_BEFORE_2.2.1> sudo apt-mark hold struts

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

dnf --showduplicates list struts sudo dnf downgrade struts-<VERSION_BEFORE_2.2.1> sudo dnf versionlock add struts

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.

opensymphony xwork DOWNGRADE

Affected: 2.2.1 · all versions

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.2.1 (Debian / Ubuntu)

apt-cache madison xwork sudo apt install xwork=<VERSION_BEFORE_2.2.1> sudo apt-mark hold xwork

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

dnf --showduplicates list xwork sudo dnf downgrade xwork-<VERSION_BEFORE_2.2.1> sudo dnf versionlock add xwork

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.

opensymphony webwork MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2011-2088?

struts: downgrade or apply the listed mitigation; xwork: downgrade or apply the listed mitigation; webwork: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-2088 being exploited?

CVE-2011-2088 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-2011-2088 affect?

CVE-2011-2088 affects struts, xwork, webwork. Severity is medium (CVSS 5.0). XWork 2.2.1 in Apache Struts 2.2.1, and OpenSymphony XWork in OpenSymphony WebWork, allows remote attackers to obtain potentially sensitive information about internal Java class paths via vectors involving an s:submit element and a nonexist

How urgent is CVE-2011-2088?

Priority 46/100. EPSS top 7%: very likely to be exploited; On your watchlist

Software pages

Apache Struts vulnerabilities · Java vulnerabilities

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References

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