CVE-2021-2053Public exploitNetwork attack vector

Data access and modification via reflected XSS

Published Apr 22, 2021 · Updated Sep 26, 2024

Reflected XSS in Oracle Enterprise Manager Base Platform 13.4.0.0 allows remote attackers to run script via a crafted HTTP URL. The UI Framework reflects the target GET parameter without safe output encoding, allowing a closing script tag to inject JavaScript. A victim must follow the crafted link; the script then runs in the Enterprise Manager origin and can read or modify accessible application data.

CVSS severity6.1
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Oracle Enterprise Manager Base Platform 13.4.0.0 allows remote attackers to run script via a crafted HTTP URL. The UI Framework reflects the target GET parameter without safe output encoding, allowing a closing script tag to inject JavaScript. A victim must follow the crafted link; the script then runs in the Enterprise Manager origin and can read or modify accessible application data.

The record

CVE
CVE-2021-2053
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle
Product
Oracle Enterprise Manager Base Platform
Classifications
T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=13.4.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle · Oracle Enterprise Manager Base Platformversion=13.4.0.0

Published CVSS scores

6.1OracleCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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