6.8

CVE-2007-4556: opensymphony xwork

CVSS: 6.8v2.0MediumModified
AliasesGHSA-h7mf-qrm9-2848
Published 28-08-2007Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2007-4556 is a medium (CVSS 6.8) vulnerability in opensymphony xwork. EPSS estimates a 25.75% chance of exploitation in the next 30 days, higher than 97.9% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v2.0 (NVD)
EPSS score
25.75%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-08-2007
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

25.75%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 25.75% on 18-09-2026

18-09-202618-10-2026
EPSS score
25.75%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Opensymphony2 products
  • xwork< 1.2.3 | ≥ 2.0.0, < 2.0.4
  • xwork< 1.2.3 | ≥ 2.0.0, ≤ 2.0.4

1 vendor · 2 products

References

15 links
Show all 15 references