CVE-2015-8834: n/a vulnerability

CVE-2015-8834: Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.2 allows remote a...

Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a long comment that is improperly stored because of limitations on the MySQL TEXT data type. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-3440.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 08:29 UTC (UTC+00:00)

Security readout for executives and security teams

Older WordPress sites before 4.2.2 can mishandle very long comments, allowing an attacker to store script or HTML that later runs in a visitor's browser. The bundle does not show active exploitation, but exposed legacy WordPress sites with comments enabled should be upgraded or confirmed patched. Internet-facing WordPress installations older than 4.2.2 are the likely exposure, especially where users can submit comments. The supplied affected-product metadata is incomplete, but the CVE description and WordPress references identify WordPress before 4.2.2. Treat as priority remediation only for legacy internet-facing WordPress. Modern supported WordPress deployments should not be affected, but any unpatched pre-4.2.2 site remains a credible stored-XSS risk. Mitigation focus: Upgrade WordPress to 4.2.2 or a later supported release.; Apply vendor or distribution security updates, including Debian-packaged WordPress fixes where applicable.; Review vendor guidance if legacy constraints prevent immediate upgrade..

Prepared: Jun 13, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 22, 2016, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://wordpress.org/news/2015/05/wordpress-4-2-2/CVE reference · x_refsource_CONFIRM
https://codex.wordpress.org/Version_4.2.2CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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