How severe is CVE-2017-16244?

CVE-2017-16244 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-16244 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16244?

CVE-2017-16244 affects Octobercms October. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16244?

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

When was CVE-2017-16244 published?

CVE-2017-16244 was published on 2017-11-01 and last updated on 2026-06-17.

CVE-2017-16244

CVE-2017-16244 is a high-severity vulnerability in Octobercms October with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Octobercms October
Published: 2017-11-01
Last modified: 2026-06-17

Description

Cross-Site Request Forgery exists in OctoberCMS 1.0.426 (aka Build 426) due to improper validation of CSRF tokens for postback handling, allowing an attacker to successfully take over the victim's account. The attack bypasses a protection mechanism involving X-CSRF headers and CSRF tokens via a certain _handler postback variable.

Frequently asked questions

What is CVE-2017-16244?: Cross-Site Request Forgery exists in OctoberCMS 1.0.426 (aka Build 426) due to improper validation of CSRF tokens for postback handling, allowing an attacker to successfully take over the victim's account. The attack bypasses a protection mechanism involving X-CSRF headers and CSRF tokens via a certain _handler postback variable.
How severe is CVE-2017-16244?: CVE-2017-16244 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-16244 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16244?: CVE-2017-16244 affects Octobercms October. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16244?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-16244 published?: CVE-2017-16244 was published on 2017-11-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:octobercms:october:1.0.426:*:*:*:*:*:*:*

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