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CVE-2023-45117· NVD / CVE Program· CNA Fluid Attacks

Online Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)

Online Examination System v1.0 is vulnerable to multiple Authenticated SQL Injection vulnerabilities. The 'eid' parameter of the /update.php?q=rmquiz resource does not validate the characters received and they are sent unfiltered to the database.

HighCVSS 8.8 · v3.1—No exploit No fix recorded

Noroxi analysis

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Published
Dec 21, 2023
Updated
Jun 17, 2026
EPSS
0.5% · 41th percentile
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Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Fluid Attacks
8.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
projectworldsonline examination system

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • projectworlds online examination system1.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Fluid Attacks). Independent of NVD's CPE analysis and usually ahead of it.

  • Projectworlds Pvt. Limited Online Examination System

    • 1.0affected

Other highest-scoring records for the same primary product.

  • CVE-2024-42843Projectworlds Online Examination System v1.0 is vulnerable to SQL Injection via the subject parameter in feed.php.
    39Monitor
  • CVE-2021-46307An SQL Injection vulnerability exists in Projectworlds Online Examination System 1.0 via the eid parameter in account.php.
    39Monitor
  • CVE-2023-45121Online Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor
  • CVE-2023-45120Online Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor
  • CVE-2023-45119Online Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor
  • CVE-2023-45118Online Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-42843238 days apartProjectworlds Online Examination System v1.0 is vulnerable to SQL Injection via the subject parameter in feed.php.
    39Monitor
  • CVE-2023-451150 days apartOnline Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor
  • CVE-2023-451160 days apartOnline Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor
  • CVE-2023-451190 days apartOnline Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor
  • CVE-2023-451200 days apartOnline Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor
  • CVE-2023-451210 days apartOnline Examination System v1.0 - Multiple Authenticated SQL Injections (SQLi)
    35Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Root cause

The query text is built by concatenating user input. The database cannot tell where the data ends and the command begins.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const owner = req.query.owner;const rows = await db.query(  "SELECT * FROM files WHERE owner = '" + owner + "'");

Fixed

ts
const owner = req.query.owner;const rows = await db.query(  "SELECT * FROM files WHERE owner = $1",  [owner]);

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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