CVE-2014-8364: Cross-site scripting (XSS) vulnerability in ss_handler.php in the WordPress Spreadsheet (wpSS) plugin 0.62 for

Routine

MEDIUM 4.3DOWNGRADE

CVE-2014-8364 is a medium-severity flaw (CVSS 4.3) affecting wordpress spreadsheet plugin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in ss_handler.php in the WordPress Spreadsheet (wpSS) plugin 0.62 for WordPress allows remote attackers to inject arbitrary web script or HTML via the ss_id parameter.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-79
Published	2014-10-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: tim rohrer

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

Am I affected?

Timeline

2014-10-20 17:55 UTCPublished CVE record published
2026-06-17 00:16 UTCUpdated Record last modified

tim rohrer wordpress spreadsheet plugin DOWNGRADE

Affected: 0.62

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.62

1. Check installed version

apt-cache policy wordpress-spreadsheet-plugin || rpm -q wordpress-spreadsheet-plugin || wordpress-spreadsheet-plugin --version

2. No fixed release: DOWNGRADE to a release before 0.62 (Debian / Ubuntu)

apt-cache madison wordpress-spreadsheet-plugin sudo apt install wordpress-spreadsheet-plugin=<VERSION_BEFORE_0.62> sudo apt-mark hold wordpress-spreadsheet-plugin

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list wordpress-spreadsheet-plugin sudo dnf downgrade wordpress-spreadsheet-plugin-<VERSION_BEFORE_0.62> sudo dnf versionlock add wordpress-spreadsheet-plugin

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2014-8364?

wordpress spreadsheet plugin: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-8364 being exploited?

CVE-2014-8364 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-2014-8364 affect?

CVE-2014-8364 affects wordpress spreadsheet plugin. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in ss_handler.php in the WordPress Spreadsheet (wpSS) plugin 0.62 for WordPress allows remote attackers to inject arbitrary web script or HTML via the ss_id parameter.

How urgent is CVE-2014-8364?

Priority 39/100. Public exploit reference

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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