VDB-184986 · CVE-2021-23926 · Nessus 296368

Oracle PeopleSoft Enterprise PeopleTools 8.57/8.58/8.59 XMLBeans xml entity expansion

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.9	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in Oracle PeopleSoft Enterprise PeopleTools 8.57/8.58/8.59 and classified as very critical. Affected is an unknown function of the component XMLBeans. The manipulation results in an unknown weakness. This vulnerability is identified as CVE-2021-23926. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical has been found in Oracle PeopleSoft Enterprise PeopleTools 8.57/8.58/8.59 (Enterprise Resource Planning Software). Affected is an unknown code of the component XMLBeans. CWE is classifying the issue as CWE-776. The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities. This is going to have an impact on confidentiality, and availability.

The weakness was released 10/19/2021 as Oracle Critical Patch Update Advisory - October 2021. The advisory is available at oracle.com. This vulnerability is traded as CVE-2021-23926. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 01/25/2026).

As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 296368 (Oracle Business Intelligence Enterprise Edition (OAS 8.2) (January 2026 CPU)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (296368). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Enterprise Resource Planning Software

Vendor

Oracle

Name

PeopleSoft Enterprise PeopleTools

Version

License

commercial

Website

Vendor: https://www.oracle.com

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.1
VulDB Temp Score: 8.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Xml entity expansion
CWE: CWE-776
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 296368
Nessus Name: Oracle Business Intelligence Enterprise Edition (OAS 8.2) (January 2026 CPU)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

01/12/2021 🔍
10/19/2021 +279 days 🔍
10/19/2021 +0 days 🔍
10/20/2021 +1 days 🔍
01/25/2026 +1558 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - October 2021
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-23926 (🔍)
GCVE (CVE): GCVE-0-2021-23926
GCVE (VulDB): GCVE-100-184986

Entryinfo

Created: 10/20/2021 08:11
Updated: 01/25/2026 15:48
Changes: 10/20/2021 08:11 (39), 10/26/2021 17:16 (3), 10/26/2021 17:23 (19), 01/25/2026 15:48 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.