CVE-2015-9391: The yawpp plugin through 1.2.2 for WordPress has XSS via the field1 parameter.

Q: How do I fix CVE-2015-9391?

yawpp: upgrade to newer than 1.2.2. Exact commands for each OS are on this page.

Q: Is CVE-2015-9391 being exploited?

CVE-2015-9391 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-9391 affect?

CVE-2015-9391 affects yawpp. Severity is medium (CVSS 6.1). The yawpp plugin through 1.2.2 for WordPress has XSS via the field1 parameter.

Q: How urgent is CVE-2015-9391?

Priority 39/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2015-9391 is a medium-severity flaw (CVSS 6.1) affecting yawpp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-09-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ostenta

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-09-20 15:15 UTCPublished CVE record published
2026-06-17 00:36 UTCUpdated Record last modified

ostenta yawpp UPGRADE

Affected: <= 1.2.2

Fixed in: newer than 1.2.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy yawpp || rpm -q yawpp || yawpp --version

2. UPGRADE to newer than 1.2.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yawpp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yawpp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-9391?

yawpp: upgrade to newer than 1.2.2. Exact commands for each OS are on this page.

Is CVE-2015-9391 being exploited?

CVE-2015-9391 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-9391 affect?

CVE-2015-9391 affects yawpp. Severity is medium (CVSS 6.1). The yawpp plugin through 1.2.2 for WordPress has XSS via the field1 parameter.

How urgent is CVE-2015-9391?

Priority 39/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities

References

← Back to latest CVEs