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Fencer Intel
high 8.3

CVE-2021-27788 json

HCL Verse is susceptible to a Cross Site Scripting (XSS) vulnerability

published 3y ago modified 4mo ago also EUVD-2021-14529

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

HCL Verse is susceptible to a Cross Site Scripting (XSS) vulnerability.  By tricking a user into clicking a crafted URL, a remote unauthenticated attacker could execute script in a victim's web browser to perform operations as the victim and/or steal the victim's cookies, session tokens, or other sensitive information.

Patch / fix

  • hcltech verse 3.0

Is CVE-2021-27788 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

  • HCL Software Verse

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.