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Fencer Vulns
medium 6.1

CVE-2021-46827 json

An issue was discovered in Oxygen XML WebHelp before 22.1 build 2021082006 and 23.x before 23.1 build 2021090310.

published 2022-07-13 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-33482

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

An issue was discovered in Oxygen XML WebHelp before 22.1 build 2021082006 and 23.x before 23.1 build 2021090310. An XSS vulnerability in search terms proposals (in online documentation generated using Oxygen XML WebHelp) allows attackers to execute JavaScript by convincing a user to type specific text in the WebHelp output search field.

Patch / fix

  • sync oxygen_publishing_engine 22.1
  • sync oxygen_xml_author 22.1
  • sync oxygen_xml_developer 22.1
  • sync oxygen_xml_editor 22.1
  • sync oxygen_xml_webhelp 22.1

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

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

Classification

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

References

Sources

Fencer Vulns 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.