Oracle Database up to 20.1 Oracle Application Express cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Oracle Database up to 20.1. This issue affects some unknown processing of the component Oracle Application Express. Performing a manipulation results in an unknown weakness. This vulnerability is identified as CVE-2020-11023. The attack can be initiated remotely. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Oracle Database up to 20.1 (Database Software). This affects an unknown code of the component Oracle Application Express. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option> elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0.

The weakness was released 04/21/2021 as Oracle Critical Patch Update Advisory - April 2021. It is possible to read the advisory at oracle.com. This vulnerability is uniquely identified as CVE-2020-11023. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The exploit is shared for download at packetstormsecurity.com. It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 208606 (CentOS 7 : pcs (RHSA-2022:7343)), which helps to determine the existence of the flaw in a target environment. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 01/23/2025 with a due date of 02/13/2025:

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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

The vulnerability is also documented in the databases at Exploit-DB (49767) and Tenable (208606). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.1
VulDB Temp Score: 5.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 6.9
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 208606
Nessus Name: CentOS 7 : pcs (RHSA-2022:7343)

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

03/30/2020 🔍
04/21/2021 +387 days 🔍
04/21/2021 +0 days 🔍
04/23/2021 +2 days 🔍
11/07/2025 +1659 days 🔍

Sourcesinfo

Vendor: oracle.com

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

CVE: CVE-2020-11023 (🔍)
GCVE (CVE): GCVE-0-2020-11023
GCVE (VulDB): GCVE-100-173331
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/23/2021 06:38
Updated: 11/07/2025 20:49
Changes: 04/23/2021 06:38 (39), 04/24/2021 08:41 (6), 04/24/2021 08:42 (19), 06/16/2024 23:27 (22), 10/14/2024 06:55 (2), 11/28/2024 20:08 (1), 01/23/2025 22:13 (14), 01/23/2025 23:55 (14), 05/03/2025 23:55 (3), 09/30/2025 15:34 (1), 11/07/2025 20:49 (1)
Complete: 🔍
Cache ID: 216:BFD:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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