Struts support in OpenSymphony XWork before 1.2.3, and 2.x before 2.0.4, as used in WebWork and Apache Struts, recursively evaluates all input as an Object-Graph Navigation Language (OGNL) expression when altSyntax is enabled, which allows remote attackers to cause a denial of service (infinite loop) or execute arbitrary code via form input beginning with a "%{" sequence and ending with a "}" character
Published Aug 28, 2007
6.8
MEDIUMCVSS 2.0
EPSS 25.75%
Description
Struts support in OpenSymphony XWork before 1.2.3, and 2.x before 2.0.4, as used in WebWork and Apache Struts, recursively evaluates all input as an Object-Graph Navigation Language (OGNL) expression when altSyntax is enabled, which allows remote attackers to cause a denial of service (infinite loop) or execute arbitrary code via form input beginning with a "%{" sequence and ending with a "}" character.
Affected products
No data.
- < 1.2.3
- ≥ 2.0.0 · ≤ 2.0.4
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 25.75% (0.25749) | 97.91th | v5 (v2026.06.15) |
| Jun 15, 2026 | 25.75% (0.25749) | 97.69th | v5 (v2026.06.15) |
| May 17, 2025 | 2.21% (0.02213) | 83.61th | v4 (v2025.03.14) |
| Mar 30, 2025 | 3.41% (0.03413) | 86.32th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.12% (0.09121) | 87.65th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.41% (0.03413) | 86.61th | v4 (v2025.03.14) |
| Dec 17, 2024 | 11.84% (0.11838) | 95.30th | v3 (v2023.03.01) |
| Oct 23, 2024 | 17.42% (0.17424) | 96.22th | v3 (v2023.03.01) |
| May 24, 2024 | 21.36% (0.21361) | 96.42th | v3 (v2023.03.01) |
| Apr 16, 2024 | 17.76% (0.17757) | 96.08th | v3 (v2023.03.01) |
| Jan 29, 2024 | 16.47% (0.16469) | 95.53th | v3 (v2023.03.01) |
| Sep 2, 2023 | 19.58% (0.19583) | 95.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 14.15% (0.14147) | 94.78th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
References (16)
- http://forums.opensymphony.com/ann.jspa?annID=54 x_refsource_CONFIRMPatchVendor Advisory
- http://issues.apache.org/struts/browse/WW-2030 x_refsource_CONFIRMThird Party Advisory
- http://jira.opensymphony.com/browse/XW-544 x_refsource_CONFIRMVendor Advisory
- http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21701 x_refsource_CONFIRMVendor Advisory
- http://jira.opensymphony.com/secure/ReleaseNote.jspa?projectId=10050&styleName=Html&version=21706 x_refsource_CONFIRMVendor Advisory
- http://osvdb.org/37072 vdb-entryx_refsource_OSVDBBroken Link
- http://secunia.com/advisories/26681 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/26693 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/26694 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://struts.apache.org/2.x/docs/s2-001.html x_refsource_CONFIRMPatchThird Party Advisory
- http://wiki.opensymphony.com/display/WW/1.2.3+Press+Release x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/25524 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2007/3041 vdb-entryx_refsource_VUPENThird Party Advisory
- http://www.vupen.com/english/advisories/2007/3042 vdb-entryx_refsource_VUPENThird Party Advisory
- https://github.com/advisories/GHSA-h7mf-qrm9-2848 Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2007-4556
Change history (0)
No recorded changes yet.