CVE-2026-73641
Multiple Reflected XSS in Dayforce ESS Excelity
Description
Dayforce ESS Excelity is vulnerable to Reflected XSS in multiple endpoints. An attacker can prepare a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser. This issue was fixed in version V4.
INFO
Published Date :
Sept. 28, 2026, 2:17 p.m.
Last Modified :
Oct. 13, 2026, 2:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | 4bb8329e-dd38-46c1-aafb-9bf32bcb93c6 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Apply updates for Dayforce Payroll.
- Verify the version R2026.2.0 or later is used.
- Sanitize user inputs to prevent XSS attacks.
- Implement output encoding for all user-supplied data.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-73641.
| URL | Resource |
|---|---|
| https://cert.pl/en/posts/2026/09/CVE-2026-73640 | |
| https://hcm.excelityglobal.com/ESS |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-73641 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-73641
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-73641 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-73641 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Oct. 13, 2026
Action Type Old Value New Value Added Reference https://hcm.excelityglobal.com/ESS Removed Reference https://essportal.excelityglobal.com -
CVE Modified by [email protected]
Oct. 13, 2026
Action Type Old Value New Value Changed Description Dayforce Payroll is vulnerable to Reflected XSS in multiple endpoints. An attacker can prepare a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version R2026.2.0 but may also affect other versions. Dayforce ESS Excelity is vulnerable to Reflected XSS in multiple endpoints. An attacker can prepare a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser. This issue was fixed in version V4. Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/73xxx/CVE-2026-73641.json">CVE-2026-73641</a> Added Reference https://cert.pl/en/posts/2026/09/CVE-2026-73640 Added Reference https://essportal.excelityglobal.com Removed Reference https://cert.pl/en/posts/2026/08/CVE-2026-73640 Removed Reference https://www.dayforce.com/how-we-help/dayforce/payroll-solutions -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 28, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-73641', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-28T17:58:00.537549Z'} -
New CVE Received by [email protected]
Sep. 28, 2026
Action Type Old Value New Value Added Description Dayforce Payroll is vulnerable to Reflected XSS in multiple endpoints. An attacker can prepare a specially crafted URL that, when opened, results in arbitrary JavaScript execution in the victim's browser. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version R2026.2.0 but may also affect other versions. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-79 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/73xxx/CVE-2026-73641.json">CVE-2026-73641</a> Added Reference https://cert.pl/en/posts/2026/08/CVE-2026-73640 Added Reference https://www.dayforce.com/how-we-help/dayforce/payroll-solutions