CVE-2021-44427Public exploitNetwork attack vector

Unauthenticated SQL injection via unsanitized syear parameter

Published Nov 29, 2021 · Updated Aug 4, 2024

SQL injection in Rosario Student Information System before 8.1.1 allows remote attackers to execute PostgreSQL statements through /Side.php. /Side.php copies the unauthenticated POST syear value into UserSyear(), and GetCurrentMP() concatenates it into the SYEAR predicate sent to DBQuery(). No session check blocks this path, so crafted requests can read, insert, update, or delete PostgreSQL data.

CVSS severity9.8
Critical
EPSS probability50.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Rosario Student Information System before 8.1.1 allows remote attackers to execute PostgreSQL statements through /Side.php. /Side.php copies the unauthenticated POST syear value into UserSyear(), and GetCurrentMP() concatenates it into the SYEAR predicate sent to DBQuery(). No session check blocks this path, so crafted requests can read, insert, update, or delete PostgreSQL data.

The record

CVE
CVE-2021-44427
Published
Nov 29, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 29, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8MITRECVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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