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Fencer Vulns
high 7.3

CVE-2024-28097 json

Stored Cross-site Scripting in Calendar functionality in Schoolbox

published 2024-03-07 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-25262

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

Calendar functionality in Schoolbox application before version 23.1.3 is vulnerable to stored cross-site scripting allowing authenticated attacker to perform security actions in the context of the affected users.

Patch / fix

  • Schoolbox Pty Ltd Schoolbox 23.1.3
  • schoolbox schoolbox 23.1.3

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

  • Schoolbox Pty Ltd Schoolbox
  • schoolbox schoolbox

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.