How severe is CVE-2013-2135?

CVE-2013-2135 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2013-2135 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-2135?

CVE-2013-2135 affects Apache Struts. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-2135?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2013-2135 published?

CVE-2013-2135 was published on 2013-07-16 and last updated on 2026-06-16.

CVE-2013-2135

CVE-2013-2135 is a critical-severity vulnerability in Apache Struts with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Apache Struts
Published: 2013-07-16
Last modified: 2026-06-16

Description

Apache Struts 2 before 2.3.14.3 allows remote attackers to execute arbitrary OGNL code via a request with a crafted value that contains both "${}" and "%{}" sequences, which causes the OGNL code to be evaluated twice.

Frequently asked questions

What is CVE-2013-2135?: Apache Struts 2 before 2.3.14.3 allows remote attackers to execute arbitrary OGNL code via a request with a crafted value that contains both "${}" and "%{}" sequences, which causes the OGNL code to be evaluated twice.
How severe is CVE-2013-2135?: CVE-2013-2135 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2013-2135 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2135?: CVE-2013-2135 affects Apache Struts. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-2135?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2013-2135 published?: CVE-2013-2135 was published on 2013-07-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*

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