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Fencer Vulns
medium 5.4

CVE-2026-34033 json

Apache Answer: HTML Content Injection in Email

published 2026-06-09 5 mo ago modified 2026-08-18 2 mo ago also EUVD-2026-35371 , GHSA-6qwm-5fm9-cvjx , GO-2026-6151

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache Answer.

This issue affects Apache Answer: through 2.0.0.

User-supplied content was included in notification emails without proper escaping, allowing authenticated users to inject arbitrary HTML into emails sent to other users. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

Patch / fix

  • go github.com/apache/incubator-answer 1.7.2-0.20260509080709-d1a4092c61cc
  • go github.com/apache/answer 1.7.2-0.20260509080709-d1a4092c61cc
  • apache answer 2.0.1
  • govulncheck-vulndb SLES for SAP applications 16.0, SLES 16.0 0.0.20260827T195228-160000.1.1

suse advisories SUSE-SU-2026:23625-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260827T195228-160000.1.1

opensuse advisories openSUSE-SU-2026:21761-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
go github.com/apache/incubator-answer
<1.7.2-0.20260509080709-d1a4092c61cc
1.7.2-0.20260509080709-d1a4092c61cc
go github.com/apache/answer
<1.7.2-0.20260509080709-d1a4092c61cc
1.7.2-0.20260509080709-d1a4092c61cc

Affected products

  • Apache Software Foundation Apache Answer

Classification

Weakness
  • CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page
  • 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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.