UpHeron
All vulnerabilities

Servers and applications

CVE-2008-6504

ParametersInterceptor in OpenSymphony XWork 2.0.x before 2.0.6 and 2.1.x before 2.1.2, as used in Apache Struts and other products, does not properly restrict # (pound sign) references to context objects, which allows remote attackers to execute Object-Graph Navigation Language (OGNL) statements and modify server-side context objects, as demonstrated by use of a \u0023 representation for the #…

Severity
Medium 5.0
Published
23 Mar 2009
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
39% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · No login needed
Attacker can
Change some data
CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:N
Sources
NVD

Description

ParametersInterceptor in OpenSymphony XWork 2.0.x before 2.0.6 and 2.1.x before 2.1.2, as used in Apache Struts and other products, does not properly restrict # (pound sign) references to context objects, which allows remote attackers to execute Object-Graph Navigation Language (OGNL) statements and modify server-side context objects, as demonstrated by use of a \u0023 representation for the # character.

From NVD.

Affected software

SoftwareAffected versions
Apache StrutsServers and applications · cpe:a:apache:struts
  • Version 2.0.11.2
  • Version 2.0.11.1
  • Version 2.0.11
  • Version 2.0.9
All 12 release lines
  • Version 2.0.0
  • Version 2.0.2
  • Version 2.0.3
  • Version 2.0.4
  • Version 2.0.5
  • Version 2.0.6
  • Version 2.0.7
  • Version 2.0.8
  • Version 2.0.9
  • Version 2.0.11
  • Version 2.0.11.1
  • Version 2.0.11.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2008-6504
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2008-6504