How severe is CVE-2013-4113?

CVE-2013-4113 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2013-4113 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4113?

CVE-2013-4113 affects Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-4113?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4113 published?

CVE-2013-4113 was published on 2013-07-13 and last updated on 2026-06-16.

CVE-2013-4113

CVE-2013-4113 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Php
Published: 2013-07-13
Last modified: 2026-06-16

Description

ext/xml/xml.c in PHP before 5.3.27 does not properly consider parsing depth, which allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a crafted document that is processed by the xml_parse_into_struct function.

Frequently asked questions

What is CVE-2013-4113?: ext/xml/xml.c in PHP before 5.3.27 does not properly consider parsing depth, which allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a crafted document that is processed by the xml_parse_into_struct function.
How severe is CVE-2013-4113?: CVE-2013-4113 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2013-4113 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4113?: CVE-2013-4113 affects Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-4113?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4113 published?: CVE-2013-4113 was published on 2013-07-13 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

45.84.120.3 (ipv4-addr)
221.161.235.168 (ipv4-addr)
187.110.238.50 (ipv4-addr)
116.255.252.44 (ipv4-addr)
113.164.66.10 (ipv4-addr)
103.38.219.22 (ipv4-addr)
103.20.122.54 (ipv4-addr)
103.148.100.146 (ipv4-addr)