How severe is CVE-2015-9364?

CVE-2015-9364 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2015-9364 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-2015-9364?

CVE-2015-9364 affects 2checkout Ithemes 2checkout. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-9364?

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

When was CVE-2015-9364 published?

CVE-2015-9364 was published on 2019-08-28 and last updated on 2026-06-17.

CVE-2015-9364

CVE-2015-9364 is a medium-severity vulnerability in 2checkout Ithemes 2checkout with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: 2checkout Ithemes 2checkout
Published: 2019-08-28
Last modified: 2026-06-17

Description

2Checkout Add-on for iThemes Exchange before 1.1.0 for WordPress has XSS via add_query_arg() and remove_query_arg().

Frequently asked questions

What is CVE-2015-9364?: 2Checkout Add-on for iThemes Exchange before 1.1.0 for WordPress has XSS via add_query_arg() and remove_query_arg().
How severe is CVE-2015-9364?: CVE-2015-9364 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2015-9364 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-2015-9364?: CVE-2015-9364 affects 2checkout Ithemes 2checkout. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-9364?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-9364 published?: CVE-2015-9364 was published on 2019-08-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:2checkout:ithemes_2checkout:*:*:*:*:*:wordpress:*:*

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