How severe is CVE-2013-1751?

CVE-2013-1751 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2013-1751 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-2013-1751?

CVE-2013-1751 affects Twiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-1751?

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-2013-1751 published?

CVE-2013-1751 was published on 2019-11-07 and last updated on 2026-06-16.

CVE-2013-1751

CVE-2013-1751 is a critical-severity vulnerability in Twiki with a CVSS 3.x base score of 9.8. 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-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Twiki
Published: 2019-11-07
Last modified: 2026-06-16

Description

TWiki before 5.1.4 allows remote attackers to execute arbitrary shell commands by sending a crafted '%MAKETEXT{}%' parameter value containing Perl backtick characters.

Frequently asked questions

What is CVE-2013-1751?: TWiki before 5.1.4 allows remote attackers to execute arbitrary shell commands by sending a crafted '%MAKETEXT{}%' parameter value containing Perl backtick characters.
How severe is CVE-2013-1751?: CVE-2013-1751 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2013-1751 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-2013-1751?: CVE-2013-1751 affects Twiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-1751?: 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-2013-1751 published?: CVE-2013-1751 was published on 2019-11-07 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:twiki:twiki:*:*:*:*:*:*:*:*

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