VulnerabilityPublished 25 Sep 2024Updated 26 Sep 2024

CVE-2024-22893: OpenSlides · Improper Privilege Management

Affects OpenSlidesSource CVE Database V5

Not known to be exploited · CVSS 7.5 High.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score

7.5High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Sep 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
GitHubopenslides/OpenSlides`pkg:github/openslides/OpenSlides`Other threats	Affected =4.0.15	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2024-22893, organizations should first monitor OpenSlides vendor communications for official patches and apply them promptly once available. In the interim, developers and administrators should implement or enforce the use of constant-time comparison functions for password hash verification to eliminate timing discrepancies. This can be achieved by using well-established cryptographic libraries that provide timing attack resistant functions. Additionally, organizations should enforce strong password policies to reduce the risk of successful brute-force attacks if hashes are partially disclosed. Network-level protections such as rate limiting, IP blacklisting, and anomaly detection on authentication endpoints can help reduce the feasibility of timing attacks by limiting repeated probing attempts. Regular security audits and penetration testing focused on authentication mechanisms are recommended to identify and remediate similar side-channel vulnerabilities. Finally, educating users about the importance of unique, complex passwords and enabling multi-factor authentication where possible can further reduce the risk of account compromise.

Description

OpenSlides 4.0.15 verifies passwords by comparing password hashes using a function with content-dependent runtime. This can allow attackers to obtain information about the password hash using a timing attack.

Impact

The primary impact of CVE-2024-22893 is the compromise of confidentiality through the potential disclosure of password hashes via timing attacks. If exploited, attackers could recover password hashes and subsequently perform offline brute-force or dictionary attacks to obtain plaintext passwords. This could lead to unauthorized access to OpenSlides instances, allowing attackers to manipulate meeting content, access sensitive discussions, or disrupt organizational workflows. While integrity and availability are not directly affected, the breach of confidentiality can have cascading effects, including loss of trust, exposure of sensitive information, and potential compliance violations. Organizations worldwide that rely on OpenSlides for secure meeting management are at risk, especially those handling sensitive or classified information. The ease of remote exploitation without authentication increases the threat surface, making it accessible to a broad range of attackers. The absence of known exploits in the wild currently limits immediate widespread impact, but the vulnerability remains a critical risk until mitigated or patched.

CWE-269Improper Privilege Management (opens in a new tab)
Class weaknessLikelihood of exploit: MediumOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Architecture and Design · Operation
Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Architecture and Design · Separation of Privilege
Follow the principle of least privilege when assigning access rights to entities in a software system.
Architecture and Design · Separation of Privilege
Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
OWASP Cheat Sheets
Docker Security (opens in a new tab)
Third Party Javascript Management (opens in a new tab)
Virtual Patching (opens in a new tab)
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V1.4.4 (opens in a new tab)
V1.4.5 (opens in a new tab)
V1.10.1 (opens in a new tab)
Attack patterns
Restful Privilege Elevation (opens in a new tab)
Privilege Abuse (opens in a new tab)
Privilege Escalation (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

gist.github.com/mdickopp/10e4a4ba3d7ded8315a1613ee7f2541e (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 28 Feb 2026, 09:16 UTC

WeaknessesCWE-269

Technical details

References

Community reviews

Related threats