CVE-2023-1783Public exploitNetwork attack vector

AWS credential disclosure via server-side PDF rendering

Published Jun 23, 2023 · Updated Nov 27, 2024

Server-side XSS in Orangescrum 2.0.11 allows remote authenticated users to obtain AWS instance credentials through PDF generation. The PDF converter accepts unvalidated attacker-controlled HTML, allowing the server-side renderer to access AWS instance metadata during document generation. A valid low-privilege session and an AWS-hosted deployment with reachable instance credentials are required; the reported impact is credential disclosure.

CVSS severity6.5
Medium
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side XSS in Orangescrum 2.0.11 allows remote authenticated users to obtain AWS instance credentials through PDF generation. The PDF converter accepts unvalidated attacker-controlled HTML, allowing the server-side renderer to access AWS instance metadata during document generation. A valid low-privilege session and an AWS-hosted deployment with reachable instance credentials are required; the reported impact is credential disclosure.

The record

CVE
CVE-2023-1783
Published
Jun 23, 2023
Updated
Nov 27, 2024
Vendor
Orangescrum
Product
Orangescrum
Classifications
CWE-79, T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Orangescrum · Orangescrumversion=2.0.11

Published CVSS scores

7.6NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
6.5Fluid AttacksCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1552.005Cloud Instance Metadata API

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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