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VulnerabilityPublished

CVE-2026-83034: Oracle WebCenter Sites · Improper Access Control

Affects Oracle WebCenter SitesSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationOracle WebCenter SitesAffected
  • =12.2.1.4.0
  • =14.1.2.0.0
Fixed in–
Mavencom.oracle.webcenter/sitespkg:maven/com.oracle.webcenter/sitesOther threatsAffected
  • =12.2.1.4.0
  • =14.1.2.0.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Oracle has released patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Users of Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 are strongly advised to apply the relevant patches promptly to mitigate the risk. Oracle recommends remaining on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.

Description

CVE-2026-83034 is a high-severity vulnerability in Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical data or potentially all accessible data within Oracle WebCenter Sites. The vulnerability has a CVSS 3.1 base score of 7.5, indicating a significant confidentiality impact without requiring privileges or user interaction. Oracle has included this vulnerability in its September 2026 Critical Security Patch Update, which provides patches for affected products.

References

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