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Fencer Vulns
medium 6.1

CVE-2020-13278 json

Reflected cross-site scripting in francoisjacquet/rosariosis

published 2020-08-12 6 y ago modified 2026-06-17 4 mo ago also GHSA-4cx9-7xqc-2jxm , EUVD-2021-0935

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

Reflected Cross-Site Scripting vulnerability in Modules.php in RosarioSIS Student Information System < 6.5.1 allows remote attackers to execute arbitrary web script via embedding javascript or HTML tags in a GET request.

Patch / fix

  • packagist francoisjacquet/rosariosis 6.5.1
  • rosariosis student_information_system 6.5.1

Exploit prediction

1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/francoisjacquet/rosariosis/-/issues/282 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist francoisjacquet/rosariosis
<6.5.1
6.5.1

Affected products

  • RosarioSIS RosarioSIS

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.