5.3

CVE-2019-18886: sensiolabs symfony Observable Discrepancy

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2019-18886DEBIAN-CVE-2019-18886
Published 21-11-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-18886 is a medium (CVSS 5.3) Observable Discrepancy vulnerability in sensiolabs symfony. EPSS estimates a 1.55% chance of exploitation in the next 30 days, higher than 74.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.55%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DLA-1999-1

Timeline

  1. 21-11-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7. The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality. This is related to symfony/security.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.55%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

0.00 pp

From 1.55% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.55%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • symfony< 4.3.8+dfsg-1
Sensiolabs1 product
  • symfony≥ 4.2.0, ≤ 4.2.11 | ≥ 4.3.0, ≤ 4.3.7
Ubuntu1 product
  • symfony< 4.3.8+dfsg-1ubuntu1

3 vendors · 3 products

References

7 links