How severe is CVE-2017-16870?

CVE-2017-16870 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-16870 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16870?

CVE-2017-16870 affects Updraftplus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16870?

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-2017-16870 published?

CVE-2017-16870 was published on 2017-11-17 and last updated on 2026-06-17.

CVE-2017-16870

CVE-2017-16870 is a high-severity vulnerability in Updraftplus with a CVSS 3.x base score of 8.1. 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-918.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Updraftplus
Published: 2017-11-17
Last modified: 2026-06-17

Description

The UpdraftPlus plugin through 1.13.12 for WordPress has SSRF in the updraft_ajax_handler function in /wp-content/plugins/updraftplus/admin.php via an httpget subaction. NOTE: the vendor reports that this does not cross a privilege boundary

Frequently asked questions

What is CVE-2017-16870?: The UpdraftPlus plugin through 1.13.12 for WordPress has SSRF in the updraft_ajax_handler function in /wp-content/plugins/updraftplus/admin.php via an httpget subaction. NOTE: the vendor reports that this does not cross a privilege boundary
How severe is CVE-2017-16870?: CVE-2017-16870 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-16870 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16870?: CVE-2017-16870 affects Updraftplus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16870?: 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-2017-16870 published?: CVE-2017-16870 was published on 2017-11-17 and last updated on 2026-06-17.

References

https://github.com/LoRexxar/CVE_Request/tree/master/wordpress%20plugin%20updraftplus%20vulnerablity#authenticated-ssrf

Affected products (1)

cpe:2.3:a:updraftplus:updraftplus:*:*:*:*:*:wordpress:*:*

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