Page generated: 09 Nov 2026, 05:44 UTC
← Dashboard

CVE-2023-49105

An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed URLs can be accepted even…

Read full description
An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed URLs can be accepted even when no signing-key is configured for the owner of the files. The earliest affected version is 10.6.0.
CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.7/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 43.19%: +0.22

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 11 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

TechRepublic
Press · 04 Sep 2026, 07:00 · CISA Flags Old ownCloud Flaw After Reported Philippine Nuclear Data Theft - TechRepublic
SC Media
Press · 31 Aug 2026, 07:00 · Suspected Chinese actor targets Philippine nuclear and naval entities using known vulnerabilities - SC Media
Pasquale Pillitteri
Press · 30 Aug 2026, 07:00 · Chinese operator exploits a 3-year-old ownCloud flaw to steal Philippine nuclear data - Pasquale Pillitteri
Security Affairs
Press · 28 Aug 2026, 07:00 · U.S. CISA adds ownCloud, Linux Kernel, and JFrog Artifactory flaws to its Known Exploited Vulnerabilities c... - Security Affairs
The Hacker News
Press · 28 Aug 2026, 07:00 · ownCloud Flaw Exploited to Steal Nuclear Records From Philippine Research Body - The Hacker News
See all 11 source documents
CyberSecurityNews
Press · 27 Aug 2026, 07:00 · Hackers Exploit ownCloud and WordPress Flaws to Steal Philippine Nuclear and Naval Data - CyberSecurityNews
GreyNoise
Press · 05 Dec 2023, 08:00 · CVE-2023-49105, WebDAV Api Authentication Bypass in ownCloud - GreyNoise
Cyber Daily
Press · 29 Nov 2023, 08:00 · Trio of major ownCloud vulnerabilities sparks ACSC critical alert - Cyber Daily
Infosecurity Magazine
Press · 29 Nov 2023, 08:00 · Hackers Exploit Critical Vulnerability in ownCloud - Infosecurity Magazine
TechTarget
Press · 27 Nov 2023, 08:00 · Threat actors targeting critical OwnCloud vulnerability - TechTarget
The Hacker News
Press · 25 Nov 2023, 08:00 · Warning: 3 Critical Vulnerabilities Expose ownCloud Users to Data Breaches - The Hacker News

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.7 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 9.8; EPSS 43.2%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:59:01.465988+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
21 Nov 2023, 00:00
First press mention
25 Nov 2023, 08:00
Added to the CISA KEV catalog
27 Aug 2026, 00:00
Latest press mention
04 Sep 2026, 07:00
Score calculated
05 Nov 2026, 13:59