CVE-2011-3923

highpriority · act · 80EPSS 0.895 · 100 %ileexploit · weaponizedEUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
2 exploits · weaponized
Likely / severe?
89.5% (100th) EPSS
CVSS 7.5 · high
Is it mine?
4 products
Check your exposure
Who says so?
3 sources
enisa_euvd · nvd · osv

EPSS · scored 2026-10-23

Apache Struts before 2.3.1.2 allows remote attackers to bypass security protections in the ParameterInterceptor class and execute arbitrary commands.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

exploits (2)

Public proof-of-concept and weaponised exploit code.

04

affected products (4)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • GHSA-j68f-8h6p-9h5qStruts ParameterInterceptor vulnerability allows remote command execution2022-04-22ghsa · osvUS

    Regular expression in ParametersInterceptor matches `top['foo'](0)` as a valid expression, which OGNL treats as `(top['foo'])(0)` and evaluates the value of 'foo' action parameter as an OGNL expression. This lets malicious users put arbitrary OGNL statements into any String variable exposed by an action and have it evaluated as an OGNL expression and since OGNL statement is in HTTP parameter value attacker can use blacklisted characters (e.g. #) to disable method execution and execute arbitrary methods, bypassing the ParametersInterceptor and OGNL library protections.

06

also known as (2)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

published 2019-11-01modified 2026-06-16
09

references (14)

External citations — patches, advisories, analysis.

scry

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