CVE-2021-33674Network attack vector

Browser script execution via underencoded email input

Published Sep 14, 2021 · Updated Aug 3, 2024

Reflected XSS in SAP Contact Center before 700 allows remote authenticated users to run script in a victim's browser through a new email. The new-email workflow returns user-controlled content to browser output without sufficient context-appropriate encoding. An authenticated user must create the crafted email and a victim must interact with the reflected content, enabling browser-context data access or actions.

CVSS severity6.5
Medium
EPSS probability0.77%
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 SAP Contact Center before 700 allows remote authenticated users to run script in a victim's browser through a new email. The new-email workflow returns user-controlled content to browser output without sufficient context-appropriate encoding. An authenticated user must create the crafted email and a victim must interact with the reflected content, enabling browser-context data access or actions.

The record

CVE
CVE-2021-33674
Published
Sep 14, 2021
Updated
Aug 3, 2024
Vendor
SAP SE
Product
SAP Contact Center
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=< 700

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SAP SE · SAP Contact Centerversion=< 700

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.5SAP SECVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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