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Unauthenticated takeover vulnerability in Oracle WebCenter Portal Security Framework

IdentifiersCVE-2026-46803

CVE-2026-46803 is a critical vulnerability in the Security Framework component of Oracle WebCenter Portal, part of Oracle Fusion Middleware. Oracle lists affected versions as 12.2.1.4.0 and 14.1.2.0.0. The issue is remotely exploitable over HTTP by an unauthenticated attacker with network access. Oracle states that successful exploitation can compromise Oracle WebCenter Portal and result in full takeover of the product. The advisory also notes scope change, meaning exploitation of the flaw in WebCenter Portal may significantly impact additional products. No specific vulnerable function or root-cause details were provided in the supplied content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can lead to complete compromise of Oracle WebCenter Portal, including high impact to confidentiality, integrity, and availability. Oracle explicitly states that attacks can result in takeover of the product. Because the CVSS vector includes scope change (S:C), exploitation may also significantly affect additional products beyond the vulnerable component. The published CVSS 3.1 base score is 10.0 with vector AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, Oracle indicates risk may be reduced by blocking the network protocols required for exploitation, specifically limiting or restricting HTTP exposure to the affected service, and by removing unnecessary privileges or access not required by users. These measures may disrupt application functionality, should be validated in non-production environments first, and are not a substitute for vendor patching.

Remediation

Patch, then assume compromise.

Apply the Oracle June 2026 Critical Security Patch Update addressing CVE-2026-46803 for Oracle WebCenter Portal / Oracle Fusion Middleware. Ensure affected deployments on versions 12.2.1.4.0 and 14.1.2.0.0 are updated to Oracle-fixed releases or patched builds provided by the vendor. Oracle also recommends remaining on actively supported versions and upgrading unsupported releases so security fixes are available. Review related Oracle Fusion Middleware and dependent component patches where applicable.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
OracleWebcenter Portalapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

2 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-46803
NVD
nvd.nist.gov/vuln/detail/CVE-2026-46803