How severe is CVE-2015-9391?

CVE-2015-9391 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-2015-9391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-9391?

CVE-2015-9391 affects Ostenta Yawpp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-9391?

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

When was CVE-2015-9391 published?

CVE-2015-9391 was published on 2019-09-20 and last updated on 2026-06-17.

CVE-2015-9391

CVE-2015-9391 is a medium-severity vulnerability in Ostenta Yawpp 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% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ostenta Yawpp
Published: 2019-09-20
Last modified: 2026-06-17

Description

The yawpp plugin through 1.2.2 for WordPress has XSS via the field1 parameter.

Frequently asked questions

What is CVE-2015-9391?: The yawpp plugin through 1.2.2 for WordPress has XSS via the field1 parameter.
How severe is CVE-2015-9391?: CVE-2015-9391 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-2015-9391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-9391?: CVE-2015-9391 affects Ostenta Yawpp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-9391?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-9391 published?: CVE-2015-9391 was published on 2019-09-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ostenta:yawpp:*:*:*:*:*:wordpress:*:*

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