How severe is CVE-2015-9521?

CVE-2015-9521 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-2015-9521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-9521?

CVE-2015-9521 primarily affects Awesomemotive Easy Digital Downloads. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-9521?

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

When was CVE-2015-9521 published?

CVE-2015-9521 was published on 2019-10-23 and last updated on 2026-06-17.

CVE-2015-9521

CVE-2015-9521 is a medium-severity vulnerability in Awesomemotive Easy Digital Downloads 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% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Awesomemotive Easy Digital Downloads
Published: 2019-10-23
Last modified: 2026-06-17

Description

The Easy Digital Downloads (EDD) Pushover Notifications extension for WordPress, as used with EDD 1.8.x before 1.8.7, 1.9.x before 1.9.10, 2.0.x before 2.0.5, 2.1.x before 2.1.11, 2.2.x before 2.2.9, and 2.3.x before 2.3.7, has XSS because add_query_arg is misused.

Frequently asked questions

What is CVE-2015-9521?: The Easy Digital Downloads (EDD) Pushover Notifications extension for WordPress, as used with EDD 1.8.x before 1.8.7, 1.9.x before 1.9.10, 2.0.x before 2.0.5, 2.1.x before 2.1.11, 2.2.x before 2.2.9, and 2.3.x before 2.3.7, has XSS because add_query_arg is misused.
How severe is CVE-2015-9521?: CVE-2015-9521 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-2015-9521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-9521?: CVE-2015-9521 primarily affects Awesomemotive Easy Digital Downloads. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-9521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-9521 published?: CVE-2015-9521 was published on 2019-10-23 and last updated on 2026-06-17.

References

https://web.archive.org/web/20160921003517/https://easydigitaldownloads.com/blog/security-fix-released/

Affected products (2)

cpe:2.3:a:awesomemotive:easy_digital_downloads:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:easydigitaldownloads:pushover_notifications:-:*:*:*:*:easy_digital_downloads:*:*

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